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Finding the Fourth Proportional to 287,088.75, 396,182.48 and 159,764.45

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Solution

The fourth proportional to 287,088.75, 396,182.48 and 159,764.45 is: 220,474.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,088.75 : 396,182.48 = 159,764.45 : x
  2. Step 2: Convert to fraction form
    287,088.75/396,182.48 = 159,764.45/x
  3. Step 3: Cross multiply
    287,088.75x = 396,182.48 × 159,764.45
  4. Step 4: Simplify right side
    287,088.75x = 63,295,873,237.10
  5. Step 5: Solve for x
    x = 63,295,873,237.10/287,088.75
  6. Step 6: Final answer
    x = 220,474.93

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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.