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Finding the Fourth Proportional to 302,811.70, 454,265.55 and 103,150.90

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Solution

The fourth proportional to 302,811.70, 454,265.55 and 103,150.90 is: 154,742.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,811.70 : 454,265.55 = 103,150.90 : x
  2. Step 2: Convert to fraction form
    302,811.70/454,265.55 = 103,150.90/x
  3. Step 3: Cross multiply
    302,811.70x = 454,265.55 × 103,150.90
  4. Step 4: Simplify right side
    302,811.70x = 46,857,900,321.50
  5. Step 5: Solve for x
    x = 46,857,900,321.50/302,811.70
  6. Step 6: Final answer
    x = 154,742.70

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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.