Home / 253,985.12-380,998.38-127,560.32

Finding the Fourth Proportional to 253,985.12, 380,998.38 and 127,560.32

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Solution

The fourth proportional to 253,985.12, 380,998.38 and 127,560.32 is: 191,350.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,985.12 : 380,998.38 = 127,560.32 : x
  2. Step 2: Convert to fraction form
    253,985.12/380,998.38 = 127,560.32/x
  3. Step 3: Cross multiply
    253,985.12x = 380,998.38 × 127,560.32
  4. Step 4: Simplify right side
    253,985.12x = 48,600,275,274.38
  5. Step 5: Solve for x
    x = 48,600,275,274.38/253,985.12
  6. Step 6: Final answer
    x = 191,350.88

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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.