Home / 319,272.27-478,585-207,023.68

Finding the Fourth Proportional to 319,272.27, 478,585 and 207,023.68

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Solution

The fourth proportional to 319,272.27, 478,585 and 207,023.68 is: 310,325.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,272.27 : 478,585 = 207,023.68 : x
  2. Step 2: Convert to fraction form
    319,272.27/478,585 = 207,023.68/x
  3. Step 3: Cross multiply
    319,272.27x = 478,585 × 207,023.68
  4. Step 4: Simplify right side
    319,272.27x = 99,078,427,892.80
  5. Step 5: Solve for x
    x = 99,078,427,892.80/319,272.27
  6. Step 6: Final answer
    x = 310,325.82

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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.