Home / 513,212.40-769,836.20-158,223.60

Finding the Fourth Proportional to 513,212.40, 769,836.20 and 158,223.60

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Solution

The fourth proportional to 513,212.40, 769,836.20 and 158,223.60 is: 237,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,212.40 : 769,836.20 = 158,223.60 : x
  2. Step 2: Convert to fraction form
    513,212.40/769,836.20 = 158,223.60/x
  3. Step 3: Cross multiply
    513,212.40x = 769,836.20 × 158,223.60
  4. Step 4: Simplify right side
    513,212.40x = 121,806,254,974.32
  5. Step 5: Solve for x
    x = 121,806,254,974.32/513,212.40
  6. Step 6: Final answer
    x = 237,340.83

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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.