Home / 406,255.79-609,382.21-121,945.10

Finding the Fourth Proportional to 406,255.79, 609,382.21 and 121,945.10

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Solution

The fourth proportional to 406,255.79, 609,382.21 and 121,945.10 is: 182,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,255.79 : 609,382.21 = 121,945.10 : x
  2. Step 2: Convert to fraction form
    406,255.79/609,382.21 = 121,945.10/x
  3. Step 3: Cross multiply
    406,255.79x = 609,382.21 × 121,945.10
  4. Step 4: Simplify right side
    406,255.79x = 74,311,176,212.56
  5. Step 5: Solve for x
    x = 74,311,176,212.56/406,255.79
  6. Step 6: Final answer
    x = 182,917.21

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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.