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Finding the Fourth Proportional to 303,113.40, 454,716.80 and 103,387.13

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Solution

The fourth proportional to 303,113.40, 454,716.80 and 103,387.13 is: 155,096.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,113.40 : 454,716.80 = 103,387.13 : x
  2. Step 2: Convert to fraction form
    303,113.40/454,716.80 = 103,387.13/x
  3. Step 3: Cross multiply
    303,113.40x = 454,716.80 × 103,387.13
  4. Step 4: Simplify right side
    303,113.40x = 47,011,862,899.67
  5. Step 5: Solve for x
    x = 47,011,862,899.67/303,113.40
  6. Step 6: Final answer
    x = 155,096.62

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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.