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Finding the Fourth Proportional to 530.08, 731.53 and 306.01

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Solution

The fourth proportional to 530.08, 731.53 and 306.01 is: 422.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.08 : 731.53 = 306.01 : x
  2. Step 2: Convert to fraction form
    530.08/731.53 = 306.01/x
  3. Step 3: Cross multiply
    530.08x = 731.53 × 306.01
  4. Step 4: Simplify right side
    530.08x = 223,855.50
  5. Step 5: Solve for x
    x = 223,855.50/530.08
  6. Step 6: Final answer
    x = 422.31

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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.