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Finding the Fourth Proportional to 266,710.13, 400,065.20 and 69,718.13

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Solution

The fourth proportional to 266,710.13, 400,065.20 and 69,718.13 is: 104,577.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,710.13 : 400,065.20 = 69,718.13 : x
  2. Step 2: Convert to fraction form
    266,710.13/400,065.20 = 69,718.13/x
  3. Step 3: Cross multiply
    266,710.13x = 400,065.20 × 69,718.13
  4. Step 4: Simplify right side
    266,710.13x = 27,891,795,273.16
  5. Step 5: Solve for x
    x = 27,891,795,273.16/266,710.13
  6. Step 6: Final answer
    x = 104,577.19

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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.