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Finding the Fourth Proportional to 371,211.52, 512,272.22 and 201,445.64

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Solution

The fourth proportional to 371,211.52, 512,272.22 and 201,445.64 is: 277,995.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,211.52 : 512,272.22 = 201,445.64 : x
  2. Step 2: Convert to fraction form
    371,211.52/512,272.22 = 201,445.64/x
  3. Step 3: Cross multiply
    371,211.52x = 512,272.22 × 201,445.64
  4. Step 4: Simplify right side
    371,211.52x = 103,195,005,212.12
  5. Step 5: Solve for x
    x = 103,195,005,212.12/371,211.52
  6. Step 6: Final answer
    x = 277,995.16

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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.