Home / 198,772.40-298,504.20-105,460.40

Finding the Fourth Proportional to 198,772.40, 298,504.20 and 105,460.40

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Solution

The fourth proportional to 198,772.40, 298,504.20 and 105,460.40 is: 158,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,772.40 : 298,504.20 = 105,460.40 : x
  2. Step 2: Convert to fraction form
    198,772.40/298,504.20 = 105,460.40/x
  3. Step 3: Cross multiply
    198,772.40x = 298,504.20 × 105,460.40
  4. Step 4: Simplify right side
    198,772.40x = 31,480,372,333.68
  5. Step 5: Solve for x
    x = 31,480,372,333.68/198,772.40
  6. Step 6: Final answer
    x = 158,373.96

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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.