Home / 287,255.58-396,472.80-172,539.24

Finding the Fourth Proportional to 287,255.58, 396,472.80 and 172,539.24

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Solution

The fourth proportional to 287,255.58, 396,472.80 and 172,539.24 is: 238,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,255.58 : 396,472.80 = 172,539.24 : x
  2. Step 2: Convert to fraction form
    287,255.58/396,472.80 = 172,539.24/x
  3. Step 3: Cross multiply
    287,255.58x = 396,472.80 × 172,539.24
  4. Step 4: Simplify right side
    287,255.58x = 68,407,115,592.67
  5. Step 5: Solve for x
    x = 68,407,115,592.67/287,255.58
  6. Step 6: Final answer
    x = 238,140.25

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1.5x scale

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.