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Finding the Fourth Proportional to 250,082.47, 345,113.82 and 136,905.22

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Solution

The fourth proportional to 250,082.47, 345,113.82 and 136,905.22 is: 188,929.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,082.47 : 345,113.82 = 136,905.22 : x
  2. Step 2: Convert to fraction form
    250,082.47/345,113.82 = 136,905.22/x
  3. Step 3: Cross multiply
    250,082.47x = 345,113.82 × 136,905.22
  4. Step 4: Simplify right side
    250,082.47x = 47,247,883,452.14
  5. Step 5: Solve for x
    x = 47,247,883,452.14/250,082.47
  6. Step 6: Final answer
    x = 188,929.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.