Home / 252,400.78-348,337.69-139,223.53

Finding the Fourth Proportional to 252,400.78, 348,337.69 and 139,223.53

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Solution

The fourth proportional to 252,400.78, 348,337.69 and 139,223.53 is: 192,142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,400.78 : 348,337.69 = 139,223.53 : x
  2. Step 2: Convert to fraction form
    252,400.78/348,337.69 = 139,223.53/x
  3. Step 3: Cross multiply
    252,400.78x = 348,337.69 × 139,223.53
  4. Step 4: Simplify right side
    252,400.78x = 48,496,802,921.21
  5. Step 5: Solve for x
    x = 48,496,802,921.21/252,400.78
  6. Step 6: Final answer
    x = 192,142.05

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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.