Home / 257,515.40-386,273.10-173,534.60

Finding the Fourth Proportional to 257,515.40, 386,273.10 and 173,534.60

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Solution

The fourth proportional to 257,515.40, 386,273.10 and 173,534.60 is: 260,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,515.40 : 386,273.10 = 173,534.60 : x
  2. Step 2: Convert to fraction form
    257,515.40/386,273.10 = 173,534.60/x
  3. Step 3: Cross multiply
    257,515.40x = 386,273.10 × 173,534.60
  4. Step 4: Simplify right side
    257,515.40x = 67,031,747,899.26
  5. Step 5: Solve for x
    x = 67,031,747,899.26/257,515.40
  6. Step 6: Final answer
    x = 260,301.90

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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.