Home / 407,135.60-561,836.21-235,047.76

Finding the Fourth Proportional to 407,135.60, 561,836.21 and 235,047.76

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Solution

The fourth proportional to 407,135.60, 561,836.21 and 235,047.76 is: 324,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,135.60 : 561,836.21 = 235,047.76 : x
  2. Step 2: Convert to fraction form
    407,135.60/561,836.21 = 235,047.76/x
  3. Step 3: Cross multiply
    407,135.60x = 561,836.21 × 235,047.76
  4. Step 4: Simplify right side
    407,135.60x = 132,058,342,647.39
  5. Step 5: Solve for x
    x = 132,058,342,647.39/407,135.60
  6. Step 6: Final answer
    x = 324,359.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.