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Finding the Fourth Proportional to 530.37, 795.63 and 270.30

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Solution

The fourth proportional to 530.37, 795.63 and 270.30 is: 405.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.37 : 795.63 = 270.30 : x
  2. Step 2: Convert to fraction form
    530.37/795.63 = 270.30/x
  3. Step 3: Cross multiply
    530.37x = 795.63 × 270.30
  4. Step 4: Simplify right side
    530.37x = 215,058.79
  5. Step 5: Solve for x
    x = 215,058.79/530.37
  6. Step 6: Final answer
    x = 405.49

Related Problems

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Double scale
Find fourth proportional to 531.37, 797.13 and 271.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.