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Finding the Fourth Proportional to 436,218.48, 654,326.88 and 136,722.12

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Solution

The fourth proportional to 436,218.48, 654,326.88 and 136,722.12 is: 205,082.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,218.48 : 654,326.88 = 136,722.12 : x
  2. Step 2: Convert to fraction form
    436,218.48/654,326.88 = 136,722.12/x
  3. Step 3: Cross multiply
    436,218.48x = 654,326.88 × 136,722.12
  4. Step 4: Simplify right side
    436,218.48x = 89,460,958,206.59
  5. Step 5: Solve for x
    x = 89,460,958,206.59/436,218.48
  6. Step 6: Final answer
    x = 205,082.92

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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.