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Finding the Fourth Proportional to 252,791.81, 348,850.55 and 139,612.13

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Solution

The fourth proportional to 252,791.81, 348,850.55 and 139,612.13 is: 192,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,791.81 : 348,850.55 = 139,612.13 : x
  2. Step 2: Convert to fraction form
    252,791.81/348,850.55 = 139,612.13/x
  3. Step 3: Cross multiply
    252,791.81x = 348,850.55 × 139,612.13
  4. Step 4: Simplify right side
    252,791.81x = 48,703,768,337.17
  5. Step 5: Solve for x
    x = 48,703,768,337.17/252,791.81
  6. Step 6: Final answer
    x = 192,663.55

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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.