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Finding the Fourth Proportional to 250,497.58, 345,684.63 and 137,320.06

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Solution

The fourth proportional to 250,497.58, 345,684.63 and 137,320.06 is: 189,500.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,497.58 : 345,684.63 = 137,320.06 : x
  2. Step 2: Convert to fraction form
    250,497.58/345,684.63 = 137,320.06/x
  3. Step 3: Cross multiply
    250,497.58x = 345,684.63 × 137,320.06
  4. Step 4: Simplify right side
    250,497.58x = 47,469,434,132.68
  5. Step 5: Solve for x
    x = 47,469,434,132.68/250,497.58
  6. Step 6: Final answer
    x = 189,500.57

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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.