Home / 287,129.40-396,378.54-179,759.04

Finding the Fourth Proportional to 287,129.40, 396,378.54 and 179,759.04

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Solution

The fourth proportional to 287,129.40, 396,378.54 and 179,759.04 is: 248,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,129.40 : 396,378.54 = 179,759.04 : x
  2. Step 2: Convert to fraction form
    287,129.40/396,378.54 = 179,759.04/x
  3. Step 3: Cross multiply
    287,129.40x = 396,378.54 × 179,759.04
  4. Step 4: Simplify right side
    287,129.40x = 71,252,625,827.00
  5. Step 5: Solve for x
    x = 71,252,625,827.00/287,129.40
  6. Step 6: Final answer
    x = 248,155.10

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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.