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Finding the Fourth Proportional to 250,788.16, 375,683.99 and 138,189.10

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Solution

The fourth proportional to 250,788.16, 375,683.99 and 138,189.10 is: 207,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,788.16 : 375,683.99 = 138,189.10 : x
  2. Step 2: Convert to fraction form
    250,788.16/375,683.99 = 138,189.10/x
  3. Step 3: Cross multiply
    250,788.16x = 375,683.99 × 138,189.10
  4. Step 4: Simplify right side
    250,788.16x = 51,915,431,868.77
  5. Step 5: Solve for x
    x = 51,915,431,868.77/250,788.16
  6. Step 6: Final answer
    x = 207,009.10

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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.