Home / 383,140.80-574,711.20-133,790.40

Finding the Fourth Proportional to 383,140.80, 574,711.20 and 133,790.40

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Solution

The fourth proportional to 383,140.80, 574,711.20 and 133,790.40 is: 200,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,140.80 : 574,711.20 = 133,790.40 : x
  2. Step 2: Convert to fraction form
    383,140.80/574,711.20 = 133,790.40/x
  3. Step 3: Cross multiply
    383,140.80x = 574,711.20 × 133,790.40
  4. Step 4: Simplify right side
    383,140.80x = 76,890,841,332.48
  5. Step 5: Solve for x
    x = 76,890,841,332.48/383,140.80
  6. Step 6: Final answer
    x = 200,685.60

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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.