Home / 278,948.15-418,425.18-110,509.49

Finding the Fourth Proportional to 278,948.15, 418,425.18 and 110,509.49

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Solution

The fourth proportional to 278,948.15, 418,425.18 and 110,509.49 is: 165,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,948.15 : 418,425.18 = 110,509.49 : x
  2. Step 2: Convert to fraction form
    278,948.15/418,425.18 = 110,509.49/x
  3. Step 3: Cross multiply
    278,948.15x = 418,425.18 × 110,509.49
  4. Step 4: Simplify right side
    278,948.15x = 46,239,953,244.96
  5. Step 5: Solve for x
    x = 46,239,953,244.96/278,948.15
  6. Step 6: Final answer
    x = 165,765.41

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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.