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Finding the Fourth Proportional to 273,019.28, 409,527.30 and 70,615.40

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Solution

The fourth proportional to 273,019.28, 409,527.30 and 70,615.40 is: 105,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,019.28 : 409,527.30 = 70,615.40 : x
  2. Step 2: Convert to fraction form
    273,019.28/409,527.30 = 70,615.40/x
  3. Step 3: Cross multiply
    273,019.28x = 409,527.30 × 70,615.40
  4. Step 4: Simplify right side
    273,019.28x = 28,918,934,100.42
  5. Step 5: Solve for x
    x = 28,918,934,100.42/273,019.28
  6. Step 6: Final answer
    x = 105,922.68

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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.