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Finding the Fourth Proportional to 485,059.00, 669,402.13 and 270,199.21

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Solution

The fourth proportional to 485,059.00, 669,402.13 and 270,199.21 is: 372,886.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,059.00 : 669,402.13 = 270,199.21 : x
  2. Step 2: Convert to fraction form
    485,059.00/669,402.13 = 270,199.21/x
  3. Step 3: Cross multiply
    485,059.00x = 669,402.13 × 270,199.21
  4. Step 4: Simplify right side
    485,059.00x = 180,871,923,673.82
  5. Step 5: Solve for x
    x = 180,871,923,673.82/485,059.00
  6. Step 6: Final answer
    x = 372,886.44

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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.