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Finding the Fourth Proportional to 252,186, 348,016.68 and 139,011.18

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Solution

The fourth proportional to 252,186, 348,016.68 and 139,011.18 is: 191,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,186 : 348,016.68 = 139,011.18 : x
  2. Step 2: Convert to fraction form
    252,186/348,016.68 = 139,011.18/x
  3. Step 3: Cross multiply
    252,186x = 348,016.68 × 139,011.18
  4. Step 4: Simplify right side
    252,186x = 48,378,209,346.48
  5. Step 5: Solve for x
    x = 48,378,209,346.48/252,186
  6. Step 6: Final answer
    x = 191,835.43

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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.