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Finding the Fourth Proportional to 250,345.40, 375,034.20 and 139,200.44

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Solution

The fourth proportional to 250,345.40, 375,034.20 and 139,200.44 is: 208,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,345.40 : 375,034.20 = 139,200.44 : x
  2. Step 2: Convert to fraction form
    250,345.40/375,034.20 = 139,200.44/x
  3. Step 3: Cross multiply
    250,345.40x = 375,034.20 × 139,200.44
  4. Step 4: Simplify right side
    250,345.40x = 52,204,925,655.05
  5. Step 5: Solve for x
    x = 52,204,925,655.05/250,345.40
  6. Step 6: Final answer
    x = 208,531.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.