Home / 319,293.20-479,112.60-141,827.60

Finding the Fourth Proportional to 319,293.20, 479,112.60 and 141,827.60

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Solution

The fourth proportional to 319,293.20, 479,112.60 and 141,827.60 is: 212,818.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,293.20 : 479,112.60 = 141,827.60 : x
  2. Step 2: Convert to fraction form
    319,293.20/479,112.60 = 141,827.60/x
  3. Step 3: Cross multiply
    319,293.20x = 479,112.60 × 141,827.60
  4. Step 4: Simplify right side
    319,293.20x = 67,951,390,187.76
  5. Step 5: Solve for x
    x = 67,951,390,187.76/319,293.20
  6. Step 6: Final answer
    x = 212,818.16

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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.