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Finding the Fourth Proportional to 252,608.72, 348,598.14 and 139,431.44

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Solution

The fourth proportional to 252,608.72, 348,598.14 and 139,431.44 is: 192,414.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,608.72 : 348,598.14 = 139,431.44 : x
  2. Step 2: Convert to fraction form
    252,608.72/348,598.14 = 139,431.44/x
  3. Step 3: Cross multiply
    252,608.72x = 348,598.14 × 139,431.44
  4. Step 4: Simplify right side
    252,608.72x = 48,605,540,641.52
  5. Step 5: Solve for x
    x = 48,605,540,641.52/252,608.72
  6. Step 6: Final answer
    x = 192,414.34

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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.