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Finding the Fourth Proportional to 659,223.20, 988,834.80 and 238,512.80

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Solution

The fourth proportional to 659,223.20, 988,834.80 and 238,512.80 is: 357,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,223.20 : 988,834.80 = 238,512.80 : x
  2. Step 2: Convert to fraction form
    659,223.20/988,834.80 = 238,512.80/x
  3. Step 3: Cross multiply
    659,223.20x = 988,834.80 × 238,512.80
  4. Step 4: Simplify right side
    659,223.20x = 235,849,756,885.44
  5. Step 5: Solve for x
    x = 235,849,756,885.44/659,223.20
  6. Step 6: Final answer
    x = 357,769.20

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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.