Home / 371,400.48-512,538.30-201,634.61

Finding the Fourth Proportional to 371,400.48, 512,538.30 and 201,634.61

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Solution

The fourth proportional to 371,400.48, 512,538.30 and 201,634.61 is: 278,258.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,400.48 : 512,538.30 = 201,634.61 : x
  2. Step 2: Convert to fraction form
    371,400.48/512,538.30 = 201,634.61/x
  3. Step 3: Cross multiply
    371,400.48x = 512,538.30 × 201,634.61
  4. Step 4: Simplify right side
    371,400.48x = 103,345,457,667.87
  5. Step 5: Solve for x
    x = 103,345,457,667.87/371,400.48
  6. Step 6: Final answer
    x = 278,258.82

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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.