Home / 258,671.04-356,963.45-143,947.72

Finding the Fourth Proportional to 258,671.04, 356,963.45 and 143,947.72

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Solution

The fourth proportional to 258,671.04, 356,963.45 and 143,947.72 is: 198,646.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,671.04 : 356,963.45 = 143,947.72 : x
  2. Step 2: Convert to fraction form
    258,671.04/356,963.45 = 143,947.72/x
  3. Step 3: Cross multiply
    258,671.04x = 356,963.45 × 143,947.72
  4. Step 4: Simplify right side
    258,671.04x = 51,384,074,750.83
  5. Step 5: Solve for x
    x = 51,384,074,750.83/258,671.04
  6. Step 6: Final answer
    x = 198,646.42

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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.