Home / 320,933.60-442,904.72-177,709.44

Finding the Fourth Proportional to 320,933.60, 442,904.72 and 177,709.44

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Solution

The fourth proportional to 320,933.60, 442,904.72 and 177,709.44 is: 245,248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,933.60 : 442,904.72 = 177,709.44 : x
  2. Step 2: Convert to fraction form
    320,933.60/442,904.72 = 177,709.44/x
  3. Step 3: Cross multiply
    320,933.60x = 442,904.72 × 177,709.44
  4. Step 4: Simplify right side
    320,933.60x = 78,708,349,764.56
  5. Step 5: Solve for x
    x = 78,708,349,764.56/320,933.60
  6. Step 6: Final answer
    x = 245,248.08

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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.