Home / 278,490.83-417,715.49-88,971.22

Finding the Fourth Proportional to 278,490.83, 417,715.49 and 88,971.22

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Solution

The fourth proportional to 278,490.83, 417,715.49 and 88,971.22 is: 133,450.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,490.83 : 417,715.49 = 88,971.22 : x
  2. Step 2: Convert to fraction form
    278,490.83/417,715.49 = 88,971.22/x
  3. Step 3: Cross multiply
    278,490.83x = 417,715.49 × 88,971.22
  4. Step 4: Simplify right side
    278,490.83x = 37,164,657,933.79
  5. Step 5: Solve for x
    x = 37,164,657,933.79/278,490.83
  6. Step 6: Final answer
    x = 133,450.20

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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.