Home / 287,171.46-396,289.77-159,844.32

Finding the Fourth Proportional to 287,171.46, 396,289.77 and 159,844.32

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Solution

The fourth proportional to 287,171.46, 396,289.77 and 159,844.32 is: 220,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,171.46 : 396,289.77 = 159,844.32 : x
  2. Step 2: Convert to fraction form
    287,171.46/396,289.77 = 159,844.32/x
  3. Step 3: Cross multiply
    287,171.46x = 396,289.77 × 159,844.32
  4. Step 4: Simplify right side
    287,171.46x = 63,344,668,808.61
  5. Step 5: Solve for x
    x = 63,344,668,808.61/287,171.46
  6. Step 6: Final answer
    x = 220,581.35

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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.