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Finding the Fourth Proportional to 370,654.72, 511,489.68 and 200,885.20

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Solution

The fourth proportional to 370,654.72, 511,489.68 and 200,885.20 is: 277,214.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,654.72 : 511,489.68 = 200,885.20 : x
  2. Step 2: Convert to fraction form
    370,654.72/511,489.68 = 200,885.20/x
  3. Step 3: Cross multiply
    370,654.72x = 511,489.68 × 200,885.20
  4. Step 4: Simplify right side
    370,654.72x = 102,750,706,664.74
  5. Step 5: Solve for x
    x = 102,750,706,664.74/370,654.72
  6. Step 6: Final answer
    x = 277,214.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.