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Finding the Fourth Proportional to 250,521.53, 375,689.01 and 100,711.40

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Solution

The fourth proportional to 250,521.53, 375,689.01 and 100,711.40 is: 151,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,521.53 : 375,689.01 = 100,711.40 : x
  2. Step 2: Convert to fraction form
    250,521.53/375,689.01 = 100,711.40/x
  3. Step 3: Cross multiply
    250,521.53x = 375,689.01 × 100,711.40
  4. Step 4: Simplify right side
    250,521.53x = 37,836,166,161.71
  5. Step 5: Solve for x
    x = 37,836,166,161.71/250,521.53
  6. Step 6: Final answer
    x = 151,029.60

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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.