Home / 257,309.87-386,002.02-97,342.43

Finding the Fourth Proportional to 257,309.87, 386,002.02 and 97,342.43

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Solution

The fourth proportional to 257,309.87, 386,002.02 and 97,342.43 is: 146,027.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,309.87 : 386,002.02 = 97,342.43 : x
  2. Step 2: Convert to fraction form
    257,309.87/386,002.02 = 97,342.43/x
  3. Step 3: Cross multiply
    257,309.87x = 386,002.02 × 97,342.43
  4. Step 4: Simplify right side
    257,309.87x = 37,574,374,611.71
  5. Step 5: Solve for x
    x = 37,574,374,611.71/257,309.87
  6. Step 6: Final answer
    x = 146,027.72

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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.