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Finding the Fourth Proportional to 485,059.34, 669,402.60 and 270,199.55

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Solution

The fourth proportional to 485,059.34, 669,402.60 and 270,199.55 is: 372,886.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,059.34 : 669,402.60 = 270,199.55 : x
  2. Step 2: Convert to fraction form
    485,059.34/669,402.60 = 270,199.55/x
  3. Step 3: Cross multiply
    485,059.34x = 669,402.60 × 270,199.55
  4. Step 4: Simplify right side
    485,059.34x = 180,872,281,288.83
  5. Step 5: Solve for x
    x = 180,872,281,288.83/485,059.34
  6. Step 6: Final answer
    x = 372,886.92

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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.