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Finding the Fourth Proportional to 530.94, 732.94 and 354.19

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Solution

The fourth proportional to 530.94, 732.94 and 354.19 is: 488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.94 : 732.94 = 354.19 : x
  2. Step 2: Convert to fraction form
    530.94/732.94 = 354.19/x
  3. Step 3: Cross multiply
    530.94x = 732.94 × 354.19
  4. Step 4: Simplify right side
    530.94x = 259,599.13
  5. Step 5: Solve for x
    x = 259,599.13/530.94
  6. Step 6: Final answer
    x = 488.95

Related Problems

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Half scale
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Double scale
Find fourth proportional to 531.94, 734.32 and 355.19
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.