Home / 319,314.20-478,973.25-94,676.76

Finding the Fourth Proportional to 319,314.20, 478,973.25 and 94,676.76

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Solution

The fourth proportional to 319,314.20, 478,973.25 and 94,676.76 is: 142,015.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,314.20 : 478,973.25 = 94,676.76 : x
  2. Step 2: Convert to fraction form
    319,314.20/478,973.25 = 94,676.76/x
  3. Step 3: Cross multiply
    319,314.20x = 478,973.25 × 94,676.76
  4. Step 4: Simplify right side
    319,314.20x = 45,347,635,436.67
  5. Step 5: Solve for x
    x = 45,347,635,436.67/319,314.20
  6. Step 6: Final answer
    x = 142,015.72

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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.