Home / 345,225.23-517,839.20-120,584.79

Finding the Fourth Proportional to 345,225.23, 517,839.20 and 120,584.79

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Solution

The fourth proportional to 345,225.23, 517,839.20 and 120,584.79 is: 180,877.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,225.23 : 517,839.20 = 120,584.79 : x
  2. Step 2: Convert to fraction form
    345,225.23/517,839.20 = 120,584.79/x
  3. Step 3: Cross multiply
    345,225.23x = 517,839.20 × 120,584.79
  4. Step 4: Simplify right side
    345,225.23x = 62,443,530,582.84
  5. Step 5: Solve for x
    x = 62,443,530,582.84/345,225.23
  6. Step 6: Final answer
    x = 180,877.66

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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.