Home / 278,746.23-418,262.36-136,588.83

Finding the Fourth Proportional to 278,746.23, 418,262.36 and 136,588.83

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Solution

The fourth proportional to 278,746.23, 418,262.36 and 136,588.83 is: 204,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,746.23 : 418,262.36 = 136,588.83 : x
  2. Step 2: Convert to fraction form
    278,746.23/418,262.36 = 136,588.83/x
  3. Step 3: Cross multiply
    278,746.23x = 418,262.36 × 136,588.83
  4. Step 4: Simplify right side
    278,746.23x = 57,129,965,702.49
  5. Step 5: Solve for x
    x = 57,129,965,702.49/278,746.23
  6. Step 6: Final answer
    x = 204,953.32

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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.