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Finding the Fourth Proportional to 266,046.10, 399,069.15 and 155,454.10

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Solution

The fourth proportional to 266,046.10, 399,069.15 and 155,454.10 is: 233,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,046.10 : 399,069.15 = 155,454.10 : x
  2. Step 2: Convert to fraction form
    266,046.10/399,069.15 = 155,454.10/x
  3. Step 3: Cross multiply
    266,046.10x = 399,069.15 × 155,454.10
  4. Step 4: Simplify right side
    266,046.10x = 62,036,935,551.02
  5. Step 5: Solve for x
    x = 62,036,935,551.02/266,046.10
  6. Step 6: Final answer
    x = 233,181.15

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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.