Home / 421,948.90-632,855.13-155,834.74

Finding the Fourth Proportional to 421,948.90, 632,855.13 and 155,834.74

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Solution

The fourth proportional to 421,948.90, 632,855.13 and 155,834.74 is: 233,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,948.90 : 632,855.13 = 155,834.74 : x
  2. Step 2: Convert to fraction form
    421,948.90/632,855.13 = 155,834.74/x
  3. Step 3: Cross multiply
    421,948.90x = 632,855.13 × 155,834.74
  4. Step 4: Simplify right side
    421,948.90x = 98,620,814,641.22
  5. Step 5: Solve for x
    x = 98,620,814,641.22/421,948.90
  6. Step 6: Final answer
    x = 233,726.91

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1.5x scale

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.