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Finding the Fourth Proportional to 160,290, 221,181.06 and 88,660.28

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Solution

The fourth proportional to 160,290, 221,181.06 and 88,660.28 is: 122,340.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,290 : 221,181.06 = 88,660.28 : x
  2. Step 2: Convert to fraction form
    160,290/221,181.06 = 88,660.28/x
  3. Step 3: Cross multiply
    160,290x = 221,181.06 × 88,660.28
  4. Step 4: Simplify right side
    160,290x = 19,609,975,595.73
  5. Step 5: Solve for x
    x = 19,609,975,595.73/160,290
  6. Step 6: Final answer
    x = 122,340.61

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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.