Home / 278,376.40-417,360.13-88,727.59

Finding the Fourth Proportional to 278,376.40, 417,360.13 and 88,727.59

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Solution

The fourth proportional to 278,376.40, 417,360.13 and 88,727.59 is: 133,026.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,376.40 : 417,360.13 = 88,727.59 : x
  2. Step 2: Convert to fraction form
    278,376.40/417,360.13 = 88,727.59/x
  3. Step 3: Cross multiply
    278,376.40x = 417,360.13 × 88,727.59
  4. Step 4: Simplify right side
    278,376.40x = 37,031,358,496.99
  5. Step 5: Solve for x
    x = 37,031,358,496.99/278,376.40
  6. Step 6: Final answer
    x = 133,026.21

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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.