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Finding the Fourth Proportional to 272,765.70, 409,148.28 and 73,080.63

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Solution

The fourth proportional to 272,765.70, 409,148.28 and 73,080.63 is: 109,620.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,765.70 : 409,148.28 = 73,080.63 : x
  2. Step 2: Convert to fraction form
    272,765.70/409,148.28 = 73,080.63/x
  3. Step 3: Cross multiply
    272,765.70x = 409,148.28 × 73,080.63
  4. Step 4: Simplify right side
    272,765.70x = 29,900,814,065.82
  5. Step 5: Solve for x
    x = 29,900,814,065.82/272,765.70
  6. Step 6: Final answer
    x = 109,620.87

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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.