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Finding the Fourth Proportional to 252,327.60, 348,216.30 and 137,606.90

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Solution

The fourth proportional to 252,327.60, 348,216.30 and 137,606.90 is: 189,899.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,327.60 : 348,216.30 = 137,606.90 : x
  2. Step 2: Convert to fraction form
    252,327.60/348,216.30 = 137,606.90/x
  3. Step 3: Cross multiply
    252,327.60x = 348,216.30 × 137,606.90
  4. Step 4: Simplify right side
    252,327.60x = 47,916,963,831.39
  5. Step 5: Solve for x
    x = 47,916,963,831.39/252,327.60
  6. Step 6: Final answer
    x = 189,899.81

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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.