Home / 206,149.28-284,484.12-115,509.20

Finding the Fourth Proportional to 206,149.28, 284,484.12 and 115,509.20

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Solution

The fourth proportional to 206,149.28, 284,484.12 and 115,509.20 is: 159,401.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,149.28 : 284,484.12 = 115,509.20 : x
  2. Step 2: Convert to fraction form
    206,149.28/284,484.12 = 115,509.20/x
  3. Step 3: Cross multiply
    206,149.28x = 284,484.12 × 115,509.20
  4. Step 4: Simplify right side
    206,149.28x = 32,860,533,113.90
  5. Step 5: Solve for x
    x = 32,860,533,113.90/206,149.28
  6. Step 6: Final answer
    x = 159,401.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.