Home / 457,697.25-686,546.01-142,154.19

Finding the Fourth Proportional to 457,697.25, 686,546.01 and 142,154.19

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Solution

The fourth proportional to 457,697.25, 686,546.01 and 142,154.19 is: 213,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,697.25 : 686,546.01 = 142,154.19 : x
  2. Step 2: Convert to fraction form
    457,697.25/686,546.01 = 142,154.19/x
  3. Step 3: Cross multiply
    457,697.25x = 686,546.01 × 142,154.19
  4. Step 4: Simplify right side
    457,697.25x = 97,595,391,949.28
  5. Step 5: Solve for x
    x = 97,595,391,949.28/457,697.25
  6. Step 6: Final answer
    x = 213,231.33

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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.