Home / 326,429.10-488,987.55-220,140.90

Finding the Fourth Proportional to 326,429.10, 488,987.55 and 220,140.90

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Solution

The fourth proportional to 326,429.10, 488,987.55 and 220,140.90 is: 329,768.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,429.10 : 488,987.55 = 220,140.90 : x
  2. Step 2: Convert to fraction form
    326,429.10/488,987.55 = 220,140.90/x
  3. Step 3: Cross multiply
    326,429.10x = 488,987.55 × 220,140.90
  4. Step 4: Simplify right side
    326,429.10x = 107,646,159,345.80
  5. Step 5: Solve for x
    x = 107,646,159,345.80/326,429.10
  6. Step 6: Final answer
    x = 329,768.88

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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.