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Finding the Fourth Proportional to 206,136.66, 310,609.14 and 169,516.95

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Solution

The fourth proportional to 206,136.66, 310,609.14 and 169,516.95 is: 255,430.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,136.66 : 310,609.14 = 169,516.95 : x
  2. Step 2: Convert to fraction form
    206,136.66/310,609.14 = 169,516.95/x
  3. Step 3: Cross multiply
    206,136.66x = 310,609.14 × 169,516.95
  4. Step 4: Simplify right side
    206,136.66x = 52,653,514,054.92
  5. Step 5: Solve for x
    x = 52,653,514,054.92/206,136.66
  6. Step 6: Final answer
    x = 255,430.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.