Home / 387,943.30-535,281.51-226,767.17

Finding the Fourth Proportional to 387,943.30, 535,281.51 and 226,767.17

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Solution

The fourth proportional to 387,943.30, 535,281.51 and 226,767.17 is: 312,891.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,943.30 : 535,281.51 = 226,767.17 : x
  2. Step 2: Convert to fraction form
    387,943.30/535,281.51 = 226,767.17/x
  3. Step 3: Cross multiply
    387,943.30x = 535,281.51 × 226,767.17
  4. Step 4: Simplify right side
    387,943.30x = 121,384,275,364.61
  5. Step 5: Solve for x
    x = 121,384,275,364.61/387,943.30
  6. Step 6: Final answer
    x = 312,891.79

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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.