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Finding the Fourth Proportional to 341,941.60, 511,990.80 and 247,938.40

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Solution

The fourth proportional to 341,941.60, 511,990.80 and 247,938.40 is: 371,239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,941.60 : 511,990.80 = 247,938.40 : x
  2. Step 2: Convert to fraction form
    341,941.60/511,990.80 = 247,938.40/x
  3. Step 3: Cross multiply
    341,941.60x = 511,990.80 × 247,938.40
  4. Step 4: Simplify right side
    341,941.60x = 126,942,179,766.72
  5. Step 5: Solve for x
    x = 126,942,179,766.72/341,941.60
  6. Step 6: Final answer
    x = 371,239.36

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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.