Home / 347,739.40-521,609.10-170,360.20

Finding the Fourth Proportional to 347,739.40, 521,609.10 and 170,360.20

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Solution

The fourth proportional to 347,739.40, 521,609.10 and 170,360.20 is: 255,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,739.40 : 521,609.10 = 170,360.20 : x
  2. Step 2: Convert to fraction form
    347,739.40/521,609.10 = 170,360.20/x
  3. Step 3: Cross multiply
    347,739.40x = 521,609.10 × 170,360.20
  4. Step 4: Simplify right side
    347,739.40x = 88,861,430,597.82
  5. Step 5: Solve for x
    x = 88,861,430,597.82/347,739.40
  6. Step 6: Final answer
    x = 255,540.30

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1.5x scale

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.