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Finding the Fourth Proportional to 341,330.80, 511,996.20 and 216,812.40

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Solution

The fourth proportional to 341,330.80, 511,996.20 and 216,812.40 is: 325,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,330.80 : 511,996.20 = 216,812.40 : x
  2. Step 2: Convert to fraction form
    341,330.80/511,996.20 = 216,812.40/x
  3. Step 3: Cross multiply
    341,330.80x = 511,996.20 × 216,812.40
  4. Step 4: Simplify right side
    341,330.80x = 111,007,124,912.88
  5. Step 5: Solve for x
    x = 111,007,124,912.88/341,330.80
  6. Step 6: Final answer
    x = 325,218.60

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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.