Home / 326,865.20-490,323.31-127,170.23

Finding the Fourth Proportional to 326,865.20, 490,323.31 and 127,170.23

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Solution

The fourth proportional to 326,865.20, 490,323.31 and 127,170.23 is: 190,765.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,865.20 : 490,323.31 = 127,170.23 : x
  2. Step 2: Convert to fraction form
    326,865.20/490,323.31 = 127,170.23/x
  3. Step 3: Cross multiply
    326,865.20x = 490,323.31 × 127,170.23
  4. Step 4: Simplify right side
    326,865.20x = 62,354,525,337.52
  5. Step 5: Solve for x
    x = 62,354,525,337.52/326,865.20
  6. Step 6: Final answer
    x = 190,765.26

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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.