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Finding the Fourth Proportional to 250,366.40, 375,510.32 and 81,885.36

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Solution

The fourth proportional to 250,366.40, 375,510.32 and 81,885.36 is: 122,815.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,366.40 : 375,510.32 = 81,885.36 : x
  2. Step 2: Convert to fraction form
    250,366.40/375,510.32 = 81,885.36/x
  3. Step 3: Cross multiply
    250,366.40x = 375,510.32 × 81,885.36
  4. Step 4: Simplify right side
    250,366.40x = 30,748,797,736.92
  5. Step 5: Solve for x
    x = 30,748,797,736.92/250,366.40
  6. Step 6: Final answer
    x = 122,815.19

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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.