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Finding the Fourth Proportional to 371,637.38, 512,850.98 and 216,578.79

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Solution

The fourth proportional to 371,637.38, 512,850.98 and 216,578.79 is: 298,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,637.38 : 512,850.98 = 216,578.79 : x
  2. Step 2: Convert to fraction form
    371,637.38/512,850.98 = 216,578.79/x
  3. Step 3: Cross multiply
    371,637.38x = 512,850.98 × 216,578.79
  4. Step 4: Simplify right side
    371,637.38x = 111,072,645,240.16
  5. Step 5: Solve for x
    x = 111,072,645,240.16/371,637.38
  6. Step 6: Final answer
    x = 298,873.72

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1.5x scale

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.