Home / 281,063.28-387,859.08-153,736.12

Finding the Fourth Proportional to 281,063.28, 387,859.08 and 153,736.12

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Solution

The fourth proportional to 281,063.28, 387,859.08 and 153,736.12 is: 212,151.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,063.28 : 387,859.08 = 153,736.12 : x
  2. Step 2: Convert to fraction form
    281,063.28/387,859.08 = 153,736.12/x
  3. Step 3: Cross multiply
    281,063.28x = 387,859.08 × 153,736.12
  4. Step 4: Simplify right side
    281,063.28x = 59,627,950,065.97
  5. Step 5: Solve for x
    x = 59,627,950,065.97/281,063.28
  6. Step 6: Final answer
    x = 212,151.33

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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.