Home / 427,488.16-641,091.68-157,554

Finding the Fourth Proportional to 427,488.16, 641,091.68 and 157,554

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Solution

The fourth proportional to 427,488.16, 641,091.68 and 157,554 is: 236,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,488.16 : 641,091.68 = 157,554 : x
  2. Step 2: Convert to fraction form
    427,488.16/641,091.68 = 157,554/x
  3. Step 3: Cross multiply
    427,488.16x = 641,091.68 × 157,554
  4. Step 4: Simplify right side
    427,488.16x = 101,006,558,550.72
  5. Step 5: Solve for x
    x = 101,006,558,550.72/427,488.16
  6. Step 6: Final answer
    x = 236,279.20

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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.