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Finding the Fourth Proportional to 349,728.80, 524,722.80 and 113,079.20

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Solution

The fourth proportional to 349,728.80, 524,722.80 and 113,079.20 is: 169,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,728.80 : 524,722.80 = 113,079.20 : x
  2. Step 2: Convert to fraction form
    349,728.80/524,722.80 = 113,079.20/x
  3. Step 3: Cross multiply
    349,728.80x = 524,722.80 × 113,079.20
  4. Step 4: Simplify right side
    349,728.80x = 59,335,234,445.76
  5. Step 5: Solve for x
    x = 59,335,234,445.76/349,728.80
  6. Step 6: Final answer
    x = 169,660.70

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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.