Home / 478,932.31-718,454.05-159,112.72

Finding the Fourth Proportional to 478,932.31, 718,454.05 and 159,112.72

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Solution

The fourth proportional to 478,932.31, 718,454.05 and 159,112.72 is: 238,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,932.31 : 718,454.05 = 159,112.72 : x
  2. Step 2: Convert to fraction form
    478,932.31/718,454.05 = 159,112.72/x
  3. Step 3: Cross multiply
    478,932.31x = 718,454.05 × 159,112.72
  4. Step 4: Simplify right side
    478,932.31x = 114,315,179,485.81
  5. Step 5: Solve for x
    x = 114,315,179,485.81/478,932.31
  6. Step 6: Final answer
    x = 238,687.55

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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.