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Finding the Fourth Proportional to 250,610.72, 345,858.54 and 137,433.50

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Solution

The fourth proportional to 250,610.72, 345,858.54 and 137,433.50 is: 189,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,610.72 : 345,858.54 = 137,433.50 : x
  2. Step 2: Convert to fraction form
    250,610.72/345,858.54 = 137,433.50/x
  3. Step 3: Cross multiply
    250,610.72x = 345,858.54 × 137,433.50
  4. Step 4: Simplify right side
    250,610.72x = 47,532,549,657.09
  5. Step 5: Solve for x
    x = 47,532,549,657.09/250,610.72
  6. Step 6: Final answer
    x = 189,666.87

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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.