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Finding the Fourth Proportional to 371,285.16, 512,373.90 and 201,519.32

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Solution

The fourth proportional to 371,285.16, 512,373.90 and 201,519.32 is: 278,096.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,285.16 : 512,373.90 = 201,519.32 : x
  2. Step 2: Convert to fraction form
    371,285.16/512,373.90 = 201,519.32/x
  3. Step 3: Cross multiply
    371,285.16x = 512,373.90 × 201,519.32
  4. Step 4: Simplify right side
    371,285.16x = 103,253,239,913.75
  5. Step 5: Solve for x
    x = 103,253,239,913.75/371,285.16
  6. Step 6: Final answer
    x = 278,096.87

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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.