Home / 498,819.98-748,340.64-143,806.30

Finding the Fourth Proportional to 498,819.98, 748,340.64 and 143,806.30

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Solution

The fourth proportional to 498,819.98, 748,340.64 and 143,806.30 is: 215,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,819.98 : 748,340.64 = 143,806.30 : x
  2. Step 2: Convert to fraction form
    498,819.98/748,340.64 = 143,806.30/x
  3. Step 3: Cross multiply
    498,819.98x = 748,340.64 × 143,806.30
  4. Step 4: Simplify right side
    498,819.98x = 107,616,096,707.18
  5. Step 5: Solve for x
    x = 107,616,096,707.18/498,819.98
  6. Step 6: Final answer
    x = 215,741.35

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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.