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Finding the Fourth Proportional to 302,900.10, 454,350.15 and 103,445.70

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Solution

The fourth proportional to 302,900.10, 454,350.15 and 103,445.70 is: 155,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,900.10 : 454,350.15 = 103,445.70 : x
  2. Step 2: Convert to fraction form
    302,900.10/454,350.15 = 103,445.70/x
  3. Step 3: Cross multiply
    302,900.10x = 454,350.15 × 103,445.70
  4. Step 4: Simplify right side
    302,900.10x = 47,000,569,311.86
  5. Step 5: Solve for x
    x = 47,000,569,311.86/302,900.10
  6. Step 6: Final answer
    x = 155,168.55

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1.5x scale

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.