Home / 219,966.10-329,949.15-163,978.90

Finding the Fourth Proportional to 219,966.10, 329,949.15 and 163,978.90

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Solution

The fourth proportional to 219,966.10, 329,949.15 and 163,978.90 is: 245,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,966.10 : 329,949.15 = 163,978.90 : x
  2. Step 2: Convert to fraction form
    219,966.10/329,949.15 = 163,978.90/x
  3. Step 3: Cross multiply
    219,966.10x = 329,949.15 × 163,978.90
  4. Step 4: Simplify right side
    219,966.10x = 54,104,698,672.94
  5. Step 5: Solve for x
    x = 54,104,698,672.94/219,966.10
  6. Step 6: Final answer
    x = 245,968.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.