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Finding the Fourth Proportional to 371,185.40, 512,237.25 and 201,419.52

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Solution

The fourth proportional to 371,185.40, 512,237.25 and 201,419.52 is: 277,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,185.40 : 512,237.25 = 201,419.52 : x
  2. Step 2: Convert to fraction form
    371,185.40/512,237.25 = 201,419.52/x
  3. Step 3: Cross multiply
    371,185.40x = 512,237.25 × 201,419.52
  4. Step 4: Simplify right side
    371,185.40x = 103,174,581,021.12
  5. Step 5: Solve for x
    x = 103,174,581,021.12/371,185.40
  6. Step 6: Final answer
    x = 277,959.70

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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.