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Finding the Fourth Proportional to 303,090.10, 454,635.15 and 103,635.70

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Solution

The fourth proportional to 303,090.10, 454,635.15 and 103,635.70 is: 155,453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,090.10 : 454,635.15 = 103,635.70 : x
  2. Step 2: Convert to fraction form
    303,090.10/454,635.15 = 103,635.70/x
  3. Step 3: Cross multiply
    303,090.10x = 454,635.15 × 103,635.70
  4. Step 4: Simplify right side
    303,090.10x = 47,116,432,014.86
  5. Step 5: Solve for x
    x = 47,116,432,014.86/303,090.10
  6. Step 6: Final answer
    x = 155,453.55

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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.