Home / 457,738.28-686,607.48-142,195.16

Finding the Fourth Proportional to 457,738.28, 686,607.48 and 142,195.16

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Solution

The fourth proportional to 457,738.28, 686,607.48 and 142,195.16 is: 213,292.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,738.28 : 686,607.48 = 142,195.16 : x
  2. Step 2: Convert to fraction form
    457,738.28/686,607.48 = 142,195.16/x
  3. Step 3: Cross multiply
    457,738.28x = 686,607.48 × 142,195.16
  4. Step 4: Simplify right side
    457,738.28x = 97,632,260,475.80
  5. Step 5: Solve for x
    x = 97,632,260,475.80/457,738.28
  6. Step 6: Final answer
    x = 213,292.76

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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.