Home / 288,540.20-432,834.90-75,336.40

Finding the Fourth Proportional to 288,540.20, 432,834.90 and 75,336.40

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Solution

The fourth proportional to 288,540.20, 432,834.90 and 75,336.40 is: 113,011.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,540.20 : 432,834.90 = 75,336.40 : x
  2. Step 2: Convert to fraction form
    288,540.20/432,834.90 = 75,336.40/x
  3. Step 3: Cross multiply
    288,540.20x = 432,834.90 × 75,336.40
  4. Step 4: Simplify right side
    288,540.20x = 32,608,223,160.36
  5. Step 5: Solve for x
    x = 32,608,223,160.36/288,540.20
  6. Step 6: Final answer
    x = 113,011.02

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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.