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Finding the Fourth Proportional to 266,456.16, 399,667.80 and 88,948.29

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Solution

The fourth proportional to 266,456.16, 399,667.80 and 88,948.29 is: 133,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,456.16 : 399,667.80 = 88,948.29 : x
  2. Step 2: Convert to fraction form
    266,456.16/399,667.80 = 88,948.29/x
  3. Step 3: Cross multiply
    266,456.16x = 399,667.80 × 88,948.29
  4. Step 4: Simplify right side
    266,456.16x = 35,549,767,378.06
  5. Step 5: Solve for x
    x = 35,549,767,378.06/266,456.16
  6. Step 6: Final answer
    x = 133,416.95

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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.