Home / 347,826.20-521,739.30-170,679.20

Finding the Fourth Proportional to 347,826.20, 521,739.30 and 170,679.20

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Solution

The fourth proportional to 347,826.20, 521,739.30 and 170,679.20 is: 256,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,826.20 : 521,739.30 = 170,679.20 : x
  2. Step 2: Convert to fraction form
    347,826.20/521,739.30 = 170,679.20/x
  3. Step 3: Cross multiply
    347,826.20x = 521,739.30 × 170,679.20
  4. Step 4: Simplify right side
    347,826.20x = 89,050,046,332.56
  5. Step 5: Solve for x
    x = 89,050,046,332.56/347,826.20
  6. Step 6: Final answer
    x = 256,018.80

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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.