Home / 252,780.78-348,839.55-139,605.42

Finding the Fourth Proportional to 252,780.78, 348,839.55 and 139,605.42

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Solution

The fourth proportional to 252,780.78, 348,839.55 and 139,605.42 is: 192,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,780.78 : 348,839.55 = 139,605.42 : x
  2. Step 2: Convert to fraction form
    252,780.78/348,839.55 = 139,605.42/x
  3. Step 3: Cross multiply
    252,780.78x = 348,839.55 × 139,605.42
  4. Step 4: Simplify right side
    252,780.78x = 48,699,891,890.36
  5. Step 5: Solve for x
    x = 48,699,891,890.36/252,780.78
  6. Step 6: Final answer
    x = 192,656.62

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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.