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Finding the Fourth Proportional to 250,510.68, 345,726.54 and 137,355.48

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Solution

The fourth proportional to 250,510.68, 345,726.54 and 137,355.48 is: 189,562.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,510.68 : 345,726.54 = 137,355.48 : x
  2. Step 2: Convert to fraction form
    250,510.68/345,726.54 = 137,355.48/x
  3. Step 3: Cross multiply
    250,510.68x = 345,726.54 × 137,355.48
  4. Step 4: Simplify right side
    250,510.68x = 47,487,434,850.44
  5. Step 5: Solve for x
    x = 47,487,434,850.44/250,510.68
  6. Step 6: Final answer
    x = 189,562.52

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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.