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Finding the Fourth Proportional to 266,254.30, 399,490.80 and 97,855.30

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Solution

The fourth proportional to 266,254.30, 399,490.80 and 97,855.30 is: 146,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,254.30 : 399,490.80 = 97,855.30 : x
  2. Step 2: Convert to fraction form
    266,254.30/399,490.80 = 97,855.30/x
  3. Step 3: Cross multiply
    266,254.30x = 399,490.80 × 97,855.30
  4. Step 4: Simplify right side
    266,254.30x = 39,092,292,081.24
  5. Step 5: Solve for x
    x = 39,092,292,081.24/266,254.30
  6. Step 6: Final answer
    x = 146,823.14

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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.