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Finding the Fourth Proportional to 371,220.10, 512,283.72 and 201,454.22

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Solution

The fourth proportional to 371,220.10, 512,283.72 and 201,454.22 is: 278,006.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,220.10 : 512,283.72 = 201,454.22 : x
  2. Step 2: Convert to fraction form
    371,220.10/512,283.72 = 201,454.22/x
  3. Step 3: Cross multiply
    371,220.10x = 512,283.72 × 201,454.22
  4. Step 4: Simplify right side
    371,220.10x = 103,201,717,231.30
  5. Step 5: Solve for x
    x = 103,201,717,231.30/371,220.10
  6. Step 6: Final answer
    x = 278,006.81

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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.