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Finding the Fourth Proportional to 371,425.84, 512,553.40 and 201,656.24

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Solution

The fourth proportional to 371,425.84, 512,553.40 and 201,656.24 is: 278,277.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,425.84 : 512,553.40 = 201,656.24 : x
  2. Step 2: Convert to fraction form
    371,425.84/512,553.40 = 201,656.24/x
  3. Step 3: Cross multiply
    371,425.84x = 512,553.40 × 201,656.24
  4. Step 4: Simplify right side
    371,425.84x = 103,359,591,443.22
  5. Step 5: Solve for x
    x = 103,359,591,443.22/371,425.84
  6. Step 6: Final answer
    x = 278,277.87

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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.