Home / 319,086.67-478,713.03-119,422.75

Finding the Fourth Proportional to 319,086.67, 478,713.03 and 119,422.75

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Solution

The fourth proportional to 319,086.67, 478,713.03 and 119,422.75 is: 179,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,086.67 : 478,713.03 = 119,422.75 : x
  2. Step 2: Convert to fraction form
    319,086.67/478,713.03 = 119,422.75/x
  3. Step 3: Cross multiply
    319,086.67x = 478,713.03 × 119,422.75
  4. Step 4: Simplify right side
    319,086.67x = 57,169,226,503.43
  5. Step 5: Solve for x
    x = 57,169,226,503.43/319,086.67
  6. Step 6: Final answer
    x = 179,165.20

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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.