Home / 324,100.10-486,587.55-257,615.30

Finding the Fourth Proportional to 324,100.10, 486,587.55 and 257,615.30

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Solution

The fourth proportional to 324,100.10, 486,587.55 and 257,615.30 is: 386,770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,100.10 : 486,587.55 = 257,615.30 : x
  2. Step 2: Convert to fraction form
    324,100.10/486,587.55 = 257,615.30/x
  3. Step 3: Cross multiply
    324,100.10x = 486,587.55 × 257,615.30
  4. Step 4: Simplify right side
    324,100.10x = 125,352,397,669.52
  5. Step 5: Solve for x
    x = 125,352,397,669.52/324,100.10
  6. Step 6: Final answer
    x = 386,770.62

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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.