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Finding the Fourth Proportional to 308,720.40, 463,145.40 and 95,470.80

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Solution

The fourth proportional to 308,720.40, 463,145.40 and 95,470.80 is: 143,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,720.40 : 463,145.40 = 95,470.80 : x
  2. Step 2: Convert to fraction form
    308,720.40/463,145.40 = 95,470.80/x
  3. Step 3: Cross multiply
    308,720.40x = 463,145.40 × 95,470.80
  4. Step 4: Simplify right side
    308,720.40x = 44,216,861,854.32
  5. Step 5: Solve for x
    x = 44,216,861,854.32/308,720.40
  6. Step 6: Final answer
    x = 143,226.24

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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.