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Finding the Fourth Proportional to 319,163.16, 478,854.11 and 108,948.72

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Solution

The fourth proportional to 319,163.16, 478,854.11 and 108,948.72 is: 163,460.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,163.16 : 478,854.11 = 108,948.72 : x
  2. Step 2: Convert to fraction form
    319,163.16/478,854.11 = 108,948.72/x
  3. Step 3: Cross multiply
    319,163.16x = 478,854.11 × 108,948.72
  4. Step 4: Simplify right side
    319,163.16x = 52,170,542,351.24
  5. Step 5: Solve for x
    x = 52,170,542,351.24/319,163.16
  6. Step 6: Final answer
    x = 163,460.41

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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.