Home / 387,481.51-581,206.33-134,819.29

Finding the Fourth Proportional to 387,481.51, 581,206.33 and 134,819.29

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Solution

The fourth proportional to 387,481.51, 581,206.33 and 134,819.29 is: 202,223.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,481.51 : 581,206.33 = 134,819.29 : x
  2. Step 2: Convert to fraction form
    387,481.51/581,206.33 = 134,819.29/x
  3. Step 3: Cross multiply
    387,481.51x = 581,206.33 × 134,819.29
  4. Step 4: Simplify right side
    387,481.51x = 78,357,824,754.11
  5. Step 5: Solve for x
    x = 78,357,824,754.11/387,481.51
  6. Step 6: Final answer
    x = 202,223.39

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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.