Home / 330,645.12-456,295.36-179,742.72

Finding the Fourth Proportional to 330,645.12, 456,295.36 and 179,742.72

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Solution

The fourth proportional to 330,645.12, 456,295.36 and 179,742.72 is: 248,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,645.12 : 456,295.36 = 179,742.72 : x
  2. Step 2: Convert to fraction form
    330,645.12/456,295.36 = 179,742.72/x
  3. Step 3: Cross multiply
    330,645.12x = 456,295.36 × 179,742.72
  4. Step 4: Simplify right side
    330,645.12x = 82,015,769,129.78
  5. Step 5: Solve for x
    x = 82,015,769,129.78/330,645.12
  6. Step 6: Final answer
    x = 248,047.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.