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Finding the Fourth Proportional to 266,534.35, 399,870.73 and 79,545.87

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Solution

The fourth proportional to 266,534.35, 399,870.73 and 79,545.87 is: 119,339.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,534.35 : 399,870.73 = 79,545.87 : x
  2. Step 2: Convert to fraction form
    266,534.35/399,870.73 = 79,545.87/x
  3. Step 3: Cross multiply
    266,534.35x = 399,870.73 × 79,545.87
  4. Step 4: Simplify right side
    266,534.35x = 31,808,064,707.66
  5. Step 5: Solve for x
    x = 31,808,064,707.66/266,534.35
  6. Step 6: Final answer
    x = 119,339.46

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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.