Home / 457,335.40-686,003.10-141,824.20

Finding the Fourth Proportional to 457,335.40, 686,003.10 and 141,824.20

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Solution

The fourth proportional to 457,335.40, 686,003.10 and 141,824.20 is: 212,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,335.40 : 686,003.10 = 141,824.20 : x
  2. Step 2: Convert to fraction form
    457,335.40/686,003.10 = 141,824.20/x
  3. Step 3: Cross multiply
    457,335.40x = 686,003.10 × 141,824.20
  4. Step 4: Simplify right side
    457,335.40x = 97,291,840,855.02
  5. Step 5: Solve for x
    x = 97,291,840,855.02/457,335.40
  6. Step 6: Final answer
    x = 212,736.30

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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.