Home / 457,337.10-686,005.65-141,890.70

Finding the Fourth Proportional to 457,337.10, 686,005.65 and 141,890.70

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Solution

The fourth proportional to 457,337.10, 686,005.65 and 141,890.70 is: 212,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,337.10 : 686,005.65 = 141,890.70 : x
  2. Step 2: Convert to fraction form
    457,337.10/686,005.65 = 141,890.70/x
  3. Step 3: Cross multiply
    457,337.10x = 686,005.65 × 141,890.70
  4. Step 4: Simplify right side
    457,337.10x = 97,337,821,882.46
  5. Step 5: Solve for x
    x = 97,337,821,882.46/457,337.10
  6. Step 6: Final answer
    x = 212,836.05

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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.