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Finding the Fourth Proportional to 266,703.91, 400,095.65 and 98,211.29

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Solution

The fourth proportional to 266,703.91, 400,095.65 and 98,211.29 is: 147,331.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,703.91 : 400,095.65 = 98,211.29 : x
  2. Step 2: Convert to fraction form
    266,703.91/400,095.65 = 98,211.29/x
  3. Step 3: Cross multiply
    266,703.91x = 400,095.65 × 98,211.29
  4. Step 4: Simplify right side
    266,703.91x = 39,293,908,154.94
  5. Step 5: Solve for x
    x = 39,293,908,154.94/266,703.91
  6. Step 6: Final answer
    x = 147,331.58

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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.