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Finding the Fourth Proportional to 485,095.83, 669,432.63 and 270,236.44

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Solution

The fourth proportional to 485,095.83, 669,432.63 and 270,236.44 is: 372,926.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,095.83 : 669,432.63 = 270,236.44 : x
  2. Step 2: Convert to fraction form
    485,095.83/669,432.63 = 270,236.44/x
  3. Step 3: Cross multiply
    485,095.83x = 669,432.63 × 270,236.44
  4. Step 4: Simplify right side
    485,095.83x = 180,905,090,751.04
  5. Step 5: Solve for x
    x = 180,905,090,751.04/485,095.83
  6. Step 6: Final answer
    x = 372,926.50

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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.