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Finding the Fourth Proportional to 272,885.60, 409,571.40 and 160,425.20

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Solution

The fourth proportional to 272,885.60, 409,571.40 and 160,425.20 is: 240,780.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,885.60 : 409,571.40 = 160,425.20 : x
  2. Step 2: Convert to fraction form
    272,885.60/409,571.40 = 160,425.20/x
  3. Step 3: Cross multiply
    272,885.60x = 409,571.40 × 160,425.20
  4. Step 4: Simplify right side
    272,885.60x = 65,705,573,759.28
  5. Step 5: Solve for x
    x = 65,705,573,759.28/272,885.60
  6. Step 6: Final answer
    x = 240,780.66

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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.