Home / 324,155.12-486,215.08-99,515.58

Finding the Fourth Proportional to 324,155.12, 486,215.08 and 99,515.58

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Solution

The fourth proportional to 324,155.12, 486,215.08 and 99,515.58 is: 149,267.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,155.12 : 486,215.08 = 99,515.58 : x
  2. Step 2: Convert to fraction form
    324,155.12/486,215.08 = 99,515.58/x
  3. Step 3: Cross multiply
    324,155.12x = 486,215.08 × 99,515.58
  4. Step 4: Simplify right side
    324,155.12x = 48,385,975,690.95
  5. Step 5: Solve for x
    x = 48,385,975,690.95/324,155.12
  6. Step 6: Final answer
    x = 149,267.97

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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.