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Finding the Fourth Proportional to 371,552.10, 512,785.67 and 220,649.10

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Solution

The fourth proportional to 371,552.10, 512,785.67 and 220,649.10 is: 304,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,552.10 : 512,785.67 = 220,649.10 : x
  2. Step 2: Convert to fraction form
    371,552.10/512,785.67 = 220,649.10/x
  3. Step 3: Cross multiply
    371,552.10x = 512,785.67 × 220,649.10
  4. Step 4: Simplify right side
    371,552.10x = 113,145,696,578.40
  5. Step 5: Solve for x
    x = 113,145,696,578.40/371,552.10
  6. Step 6: Final answer
    x = 304,521.75

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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.