Home / 345,220.20-517,881.33-176,835.78

Finding the Fourth Proportional to 345,220.20, 517,881.33 and 176,835.78

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Solution

The fourth proportional to 345,220.20, 517,881.33 and 176,835.78 is: 265,279.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,220.20 : 517,881.33 = 176,835.78 : x
  2. Step 2: Convert to fraction form
    345,220.20/517,881.33 = 176,835.78/x
  3. Step 3: Cross multiply
    345,220.20x = 517,881.33 × 176,835.78
  4. Step 4: Simplify right side
    345,220.20x = 91,579,948,937.99
  5. Step 5: Solve for x
    x = 91,579,948,937.99/345,220.20
  6. Step 6: Final answer
    x = 265,279.81

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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.