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Finding the Fourth Proportional to 530.66, 732.32 and 297.78

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Solution

The fourth proportional to 530.66, 732.32 and 297.78 is: 410.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.66 : 732.32 = 297.78 : x
  2. Step 2: Convert to fraction form
    530.66/732.32 = 297.78/x
  3. Step 3: Cross multiply
    530.66x = 732.32 × 297.78
  4. Step 4: Simplify right side
    530.66x = 218,070.25
  5. Step 5: Solve for x
    x = 218,070.25/530.66
  6. Step 6: Final answer
    x = 410.94

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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.