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Finding the Fourth Proportional to 485,293.85, 669,710.37 and 267,510.25

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Solution

The fourth proportional to 485,293.85, 669,710.37 and 267,510.25 is: 369,166.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,293.85 : 669,710.37 = 267,510.25 : x
  2. Step 2: Convert to fraction form
    485,293.85/669,710.37 = 267,510.25/x
  3. Step 3: Cross multiply
    485,293.85x = 669,710.37 × 267,510.25
  4. Step 4: Simplify right side
    485,293.85x = 179,154,388,506.29
  5. Step 5: Solve for x
    x = 179,154,388,506.29/485,293.85
  6. Step 6: Final answer
    x = 369,166.82

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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.