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Finding the Fourth Proportional to 219,853.80, 329,999.40 and 107,660.70

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Solution

The fourth proportional to 219,853.80, 329,999.40 and 107,660.70 is: 161,598.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,853.80 : 329,999.40 = 107,660.70 : x
  2. Step 2: Convert to fraction form
    219,853.80/329,999.40 = 107,660.70/x
  3. Step 3: Cross multiply
    219,853.80x = 329,999.40 × 107,660.70
  4. Step 4: Simplify right side
    219,853.80x = 35,527,966,403.58
  5. Step 5: Solve for x
    x = 35,527,966,403.58/219,853.80
  6. Step 6: Final answer
    x = 161,598.15

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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.