Home / 368,126.78-507,844.38-215,171.44

Finding the Fourth Proportional to 368,126.78, 507,844.38 and 215,171.44

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Solution

The fourth proportional to 368,126.78, 507,844.38 and 215,171.44 is: 296,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,126.78 : 507,844.38 = 215,171.44 : x
  2. Step 2: Convert to fraction form
    368,126.78/507,844.38 = 215,171.44/x
  3. Step 3: Cross multiply
    368,126.78x = 507,844.38 × 215,171.44
  4. Step 4: Simplify right side
    368,126.78x = 109,273,606,077.79
  5. Step 5: Solve for x
    x = 109,273,606,077.79/368,126.78
  6. Step 6: Final answer
    x = 296,836.89

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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.