Home / 319,049.12-478,582.94-119,331.38

Finding the Fourth Proportional to 319,049.12, 478,582.94 and 119,331.38

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Solution

The fourth proportional to 319,049.12, 478,582.94 and 119,331.38 is: 179,000.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,049.12 : 478,582.94 = 119,331.38 : x
  2. Step 2: Convert to fraction form
    319,049.12/478,582.94 = 119,331.38/x
  3. Step 3: Cross multiply
    319,049.12x = 478,582.94 × 119,331.38
  4. Step 4: Simplify right side
    319,049.12x = 57,109,962,674.66
  5. Step 5: Solve for x
    x = 57,109,962,674.66/319,049.12
  6. Step 6: Final answer
    x = 179,000.53

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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.