Home / 302,819.20-454,276.80-103,158.40

Finding the Fourth Proportional to 302,819.20, 454,276.80 and 103,158.40

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Solution

The fourth proportional to 302,819.20, 454,276.80 and 103,158.40 is: 154,753.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,819.20 : 454,276.80 = 103,158.40 : x
  2. Step 2: Convert to fraction form
    302,819.20/454,276.80 = 103,158.40/x
  3. Step 3: Cross multiply
    302,819.20x = 454,276.80 × 103,158.40
  4. Step 4: Simplify right side
    302,819.20x = 46,862,467,845.12
  5. Step 5: Solve for x
    x = 46,862,467,845.12/302,819.20
  6. Step 6: Final answer
    x = 154,753.95

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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.