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Finding the Fourth Proportional to 530.20, 731.67 and 294.19

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Solution

The fourth proportional to 530.20, 731.67 and 294.19 is: 405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.20 : 731.67 = 294.19 : x
  2. Step 2: Convert to fraction form
    530.20/731.67 = 294.19/x
  3. Step 3: Cross multiply
    530.20x = 731.67 × 294.19
  4. Step 4: Simplify right side
    530.20x = 215,250.00
  5. Step 5: Solve for x
    x = 215,250.00/530.20
  6. Step 6: Final answer
    x = 405.98

Related Problems

Find fourth proportional to 265.10, 365.84 and 147.10
Half scale
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Double scale
Find fourth proportional to 531.20, 733.05 and 295.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.