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Finding the Fourth Proportional to 371,393.64, 512,529.45 and 201,627.78

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Solution

The fourth proportional to 371,393.64, 512,529.45 and 201,627.78 is: 278,249.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,393.64 : 512,529.45 = 201,627.78 : x
  2. Step 2: Convert to fraction form
    371,393.64/512,529.45 = 201,627.78/x
  3. Step 3: Cross multiply
    371,393.64x = 512,529.45 × 201,627.78
  4. Step 4: Simplify right side
    371,393.64x = 103,340,175,188.12
  5. Step 5: Solve for x
    x = 103,340,175,188.12/371,393.64
  6. Step 6: Final answer
    x = 278,249.72

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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.