Home / 253,256.28-379,744.15-103,601.62

Finding the Fourth Proportional to 253,256.28, 379,744.15 and 103,601.62

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Solution

The fourth proportional to 253,256.28, 379,744.15 and 103,601.62 is: 155,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,256.28 : 379,744.15 = 103,601.62 : x
  2. Step 2: Convert to fraction form
    253,256.28/379,744.15 = 103,601.62/x
  3. Step 3: Cross multiply
    253,256.28x = 379,744.15 × 103,601.62
  4. Step 4: Simplify right side
    253,256.28x = 39,342,109,125.52
  5. Step 5: Solve for x
    x = 39,342,109,125.52/253,256.28
  6. Step 6: Final answer
    x = 155,345.05

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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.