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Finding the Fourth Proportional to 250,234.40, 345,307.92 and 137,050.40

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Solution

The fourth proportional to 250,234.40, 345,307.92 and 137,050.40 is: 189,121.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,234.40 : 345,307.92 = 137,050.40 : x
  2. Step 2: Convert to fraction form
    250,234.40/345,307.92 = 137,050.40/x
  3. Step 3: Cross multiply
    250,234.40x = 345,307.92 × 137,050.40
  4. Step 4: Simplify right side
    250,234.40x = 47,324,588,559.17
  5. Step 5: Solve for x
    x = 47,324,588,559.17/250,234.40
  6. Step 6: Final answer
    x = 189,121.03

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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.