Home / 287,267.10-396,444.95-172,580.82

Finding the Fourth Proportional to 287,267.10, 396,444.95 and 172,580.82

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Solution

The fourth proportional to 287,267.10, 396,444.95 and 172,580.82 is: 238,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,267.10 : 396,444.95 = 172,580.82 : x
  2. Step 2: Convert to fraction form
    287,267.10/396,444.95 = 172,580.82/x
  3. Step 3: Cross multiply
    287,267.10x = 396,444.95 × 172,580.82
  4. Step 4: Simplify right side
    287,267.10x = 68,418,794,555.86
  5. Step 5: Solve for x
    x = 68,418,794,555.86/287,267.10
  6. Step 6: Final answer
    x = 238,171.36

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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.