Home / 345,478.24-517,780.76-185,155.76

Finding the Fourth Proportional to 345,478.24, 517,780.76 and 185,155.76

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Solution

The fourth proportional to 345,478.24, 517,780.76 and 185,155.76 is: 277,499.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,478.24 : 517,780.76 = 185,155.76 : x
  2. Step 2: Convert to fraction form
    345,478.24/517,780.76 = 185,155.76/x
  3. Step 3: Cross multiply
    345,478.24x = 517,780.76 × 185,155.76
  4. Step 4: Simplify right side
    345,478.24x = 95,870,090,131.18
  5. Step 5: Solve for x
    x = 95,870,090,131.18/345,478.24
  6. Step 6: Final answer
    x = 277,499.65

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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.