Home / 252,557.04-378,659.88-127,812.72

Finding the Fourth Proportional to 252,557.04, 378,659.88 and 127,812.72

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Solution

The fourth proportional to 252,557.04, 378,659.88 and 127,812.72 is: 191,630.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,557.04 : 378,659.88 = 127,812.72 : x
  2. Step 2: Convert to fraction form
    252,557.04/378,659.88 = 127,812.72/x
  3. Step 3: Cross multiply
    252,557.04x = 378,659.88 × 127,812.72
  4. Step 4: Simplify right side
    252,557.04x = 48,397,549,217.67
  5. Step 5: Solve for x
    x = 48,397,549,217.67/252,557.04
  6. Step 6: Final answer
    x = 191,630.17

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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.