Home / 347,760.31-520,869.76-267,205.35

Finding the Fourth Proportional to 347,760.31, 520,869.76 and 267,205.35

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Solution

The fourth proportional to 347,760.31, 520,869.76 and 267,205.35 is: 400,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,760.31 : 520,869.76 = 267,205.35 : x
  2. Step 2: Convert to fraction form
    347,760.31/520,869.76 = 267,205.35/x
  3. Step 3: Cross multiply
    347,760.31x = 520,869.76 × 267,205.35
  4. Step 4: Simplify right side
    347,760.31x = 139,179,186,525.22
  5. Step 5: Solve for x
    x = 139,179,186,525.22/347,760.31
  6. Step 6: Final answer
    x = 400,215.85

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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.