Home / 391,148.39-585,977.78-222,784.92

Finding the Fourth Proportional to 391,148.39, 585,977.78 and 222,784.92

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Solution

The fourth proportional to 391,148.39, 585,977.78 and 222,784.92 is: 333,753.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,148.39 : 585,977.78 = 222,784.92 : x
  2. Step 2: Convert to fraction form
    391,148.39/585,977.78 = 222,784.92/x
  3. Step 3: Cross multiply
    391,148.39x = 585,977.78 × 222,784.92
  4. Step 4: Simplify right side
    391,148.39x = 130,547,012,839.08
  5. Step 5: Solve for x
    x = 130,547,012,839.08/391,148.39
  6. Step 6: Final answer
    x = 333,753.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.