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Finding the Fourth Proportional to 266,378.52, 399,513.72 and 97,840.92

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Solution

The fourth proportional to 266,378.52, 399,513.72 and 97,840.92 is: 146,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,378.52 : 399,513.72 = 97,840.92 : x
  2. Step 2: Convert to fraction form
    266,378.52/399,513.72 = 97,840.92/x
  3. Step 3: Cross multiply
    266,378.52x = 399,513.72 × 97,840.92
  4. Step 4: Simplify right side
    266,378.52x = 39,088,789,917.42
  5. Step 5: Solve for x
    x = 39,088,789,917.42/266,378.52
  6. Step 6: Final answer
    x = 146,741.52

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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.