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Finding the Fourth Proportional to 371,256.52, 512,333.72 and 201,490.78

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Solution

The fourth proportional to 371,256.52, 512,333.72 and 201,490.78 is: 278,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,256.52 : 512,333.72 = 201,490.78 : x
  2. Step 2: Convert to fraction form
    371,256.52/512,333.72 = 201,490.78/x
  3. Step 3: Cross multiply
    371,256.52x = 512,333.72 × 201,490.78
  4. Step 4: Simplify right side
    371,256.52x = 103,230,520,863.10
  5. Step 5: Solve for x
    x = 103,230,520,863.10/371,256.52
  6. Step 6: Final answer
    x = 278,057.13

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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.