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Finding the Fourth Proportional to 371,153.55, 512,197.85 and 201,387.68

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Solution

The fourth proportional to 371,153.55, 512,197.85 and 201,387.68 is: 277,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,153.55 : 512,197.85 = 201,387.68 : x
  2. Step 2: Convert to fraction form
    371,153.55/512,197.85 = 201,387.68/x
  3. Step 3: Cross multiply
    371,153.55x = 512,197.85 × 201,387.68
  4. Step 4: Simplify right side
    371,153.55x = 103,150,334,654.97
  5. Step 5: Solve for x
    x = 103,150,334,654.97/371,153.55
  6. Step 6: Final answer
    x = 277,918.22

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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.