Home / 293,072.40-439,608.60-272,077.20

Finding the Fourth Proportional to 293,072.40, 439,608.60 and 272,077.20

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Solution

The fourth proportional to 293,072.40, 439,608.60 and 272,077.20 is: 408,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,072.40 : 439,608.60 = 272,077.20 : x
  2. Step 2: Convert to fraction form
    293,072.40/439,608.60 = 272,077.20/x
  3. Step 3: Cross multiply
    293,072.40x = 439,608.60 × 272,077.20
  4. Step 4: Simplify right side
    293,072.40x = 119,607,476,983.92
  5. Step 5: Solve for x
    x = 119,607,476,983.92/293,072.40
  6. Step 6: Final answer
    x = 408,115.80

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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.