Home / 438,908.32-605,742.78-247,934.02

Finding the Fourth Proportional to 438,908.32, 605,742.78 and 247,934.02

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Solution

The fourth proportional to 438,908.32, 605,742.78 and 247,934.02 is: 342,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,908.32 : 605,742.78 = 247,934.02 : x
  2. Step 2: Convert to fraction form
    438,908.32/605,742.78 = 247,934.02/x
  3. Step 3: Cross multiply
    438,908.32x = 605,742.78 × 247,934.02
  4. Step 4: Simplify right side
    438,908.32x = 150,184,242,531.38
  5. Step 5: Solve for x
    x = 150,184,242,531.38/438,908.32
  6. Step 6: Final answer
    x = 342,176.80

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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.