Home / 490,788.12-736,191.42-153,821.31

Finding the Fourth Proportional to 490,788.12, 736,191.42 and 153,821.31

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Solution

The fourth proportional to 490,788.12, 736,191.42 and 153,821.31 is: 230,734.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,788.12 : 736,191.42 = 153,821.31 : x
  2. Step 2: Convert to fraction form
    490,788.12/736,191.42 = 153,821.31/x
  3. Step 3: Cross multiply
    490,788.12x = 736,191.42 × 153,821.31
  4. Step 4: Simplify right side
    490,788.12x = 113,241,928,635.16
  5. Step 5: Solve for x
    x = 113,241,928,635.16/490,788.12
  6. Step 6: Final answer
    x = 230,734.86

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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.