Home / 278,368.32-417,348-88,719.57

Finding the Fourth Proportional to 278,368.32, 417,348 and 88,719.57

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Solution

The fourth proportional to 278,368.32, 417,348 and 88,719.57 is: 133,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,368.32 : 417,348 = 88,719.57 : x
  2. Step 2: Convert to fraction form
    278,368.32/417,348 = 88,719.57/x
  3. Step 3: Cross multiply
    278,368.32x = 417,348 × 88,719.57
  4. Step 4: Simplify right side
    278,368.32x = 37,026,935,100.36
  5. Step 5: Solve for x
    x = 37,026,935,100.36/278,368.32
  6. Step 6: Final answer
    x = 133,014.18

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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.