Home / 252,402.78-348,340.45-139,225.53

Finding the Fourth Proportional to 252,402.78, 348,340.45 and 139,225.53

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Solution

The fourth proportional to 252,402.78, 348,340.45 and 139,225.53 is: 192,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,402.78 : 348,340.45 = 139,225.53 : x
  2. Step 2: Convert to fraction form
    252,402.78/348,340.45 = 139,225.53/x
  3. Step 3: Cross multiply
    252,402.78x = 348,340.45 × 139,225.53
  4. Step 4: Simplify right side
    252,402.78x = 48,497,883,771.69
  5. Step 5: Solve for x
    x = 48,497,883,771.69/252,402.78
  6. Step 6: Final answer
    x = 192,144.81

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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.