Home / 281,126.31-387,947.66-153,802.95

Finding the Fourth Proportional to 281,126.31, 387,947.66 and 153,802.95

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Solution

The fourth proportional to 281,126.31, 387,947.66 and 153,802.95 is: 212,244.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,126.31 : 387,947.66 = 153,802.95 : x
  2. Step 2: Convert to fraction form
    281,126.31/387,947.66 = 153,802.95/x
  3. Step 3: Cross multiply
    281,126.31x = 387,947.66 × 153,802.95
  4. Step 4: Simplify right side
    281,126.31x = 59,667,493,784.58
  5. Step 5: Solve for x
    x = 59,667,493,784.58/281,126.31
  6. Step 6: Final answer
    x = 212,244.43

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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.