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Finding the Fourth Proportional to 266,545.60, 399,887.60 and 79,557.12

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Solution

The fourth proportional to 266,545.60, 399,887.60 and 79,557.12 is: 119,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,545.60 : 399,887.60 = 79,557.12 : x
  2. Step 2: Convert to fraction form
    266,545.60/399,887.60 = 79,557.12/x
  3. Step 3: Cross multiply
    266,545.60x = 399,887.60 × 79,557.12
  4. Step 4: Simplify right side
    266,545.60x = 31,813,905,779.71
  5. Step 5: Solve for x
    x = 31,813,905,779.71/266,545.60
  6. Step 6: Final answer
    x = 119,356.33

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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.