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Finding the Fourth Proportional to 266,851.76, 400,305.58 and 86,951.16

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Solution

The fourth proportional to 266,851.76, 400,305.58 and 86,951.16 is: 130,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,851.76 : 400,305.58 = 86,951.16 : x
  2. Step 2: Convert to fraction form
    266,851.76/400,305.58 = 86,951.16/x
  3. Step 3: Cross multiply
    266,851.76x = 400,305.58 × 86,951.16
  4. Step 4: Simplify right side
    266,851.76x = 34,807,034,535.47
  5. Step 5: Solve for x
    x = 34,807,034,535.47/266,851.76
  6. Step 6: Final answer
    x = 130,435.84

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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.