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Finding the Fourth Proportional to 198,131.60, 297,233.40 and 64,974.80

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Solution

The fourth proportional to 198,131.60, 297,233.40 and 64,974.80 is: 97,474.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,131.60 : 297,233.40 = 64,974.80 : x
  2. Step 2: Convert to fraction form
    198,131.60/297,233.40 = 64,974.80/x
  3. Step 3: Cross multiply
    198,131.60x = 297,233.40 × 64,974.80
  4. Step 4: Simplify right side
    198,131.60x = 19,312,680,718.32
  5. Step 5: Solve for x
    x = 19,312,680,718.32/198,131.60
  6. Step 6: Final answer
    x = 97,474.01

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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.