Home / 558,819.77-838,221.46-138,095.65

Finding the Fourth Proportional to 558,819.77, 838,221.46 and 138,095.65

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Solution

The fourth proportional to 558,819.77, 838,221.46 and 138,095.65 is: 207,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,819.77 : 838,221.46 = 138,095.65 : x
  2. Step 2: Convert to fraction form
    558,819.77/838,221.46 = 138,095.65/x
  3. Step 3: Cross multiply
    558,819.77x = 838,221.46 × 138,095.65
  4. Step 4: Simplify right side
    558,819.77x = 115,754,737,362.65
  5. Step 5: Solve for x
    x = 115,754,737,362.65/558,819.77
  6. Step 6: Final answer
    x = 207,141.45

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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.