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Finding the Fourth Proportional to 302,818.61, 454,298.19 and 103,140.73

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Solution

The fourth proportional to 302,818.61, 454,298.19 and 103,140.73 is: 154,735.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,818.61 : 454,298.19 = 103,140.73 : x
  2. Step 2: Convert to fraction form
    302,818.61/454,298.19 = 103,140.73/x
  3. Step 3: Cross multiply
    302,818.61x = 454,298.19 × 103,140.73
  4. Step 4: Simplify right side
    302,818.61x = 46,856,646,954.28
  5. Step 5: Solve for x
    x = 46,856,646,954.28/302,818.61
  6. Step 6: Final answer
    x = 154,735.03

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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.