Home / 372,402.15-512,936.04-286,196.19

Finding the Fourth Proportional to 372,402.15, 512,936.04 and 286,196.19

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Solution

The fourth proportional to 372,402.15, 512,936.04 and 286,196.19 is: 394,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,402.15 : 512,936.04 = 286,196.19 : x
  2. Step 2: Convert to fraction form
    372,402.15/512,936.04 = 286,196.19/x
  3. Step 3: Cross multiply
    372,402.15x = 512,936.04 × 286,196.19
  4. Step 4: Simplify right side
    372,402.15x = 146,800,340,361.69
  5. Step 5: Solve for x
    x = 146,800,340,361.69/372,402.15
  6. Step 6: Final answer
    x = 394,198.42

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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.