Home / 387,372.48-534,480.12-226,135.32

Finding the Fourth Proportional to 387,372.48, 534,480.12 and 226,135.32

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Solution

The fourth proportional to 387,372.48, 534,480.12 and 226,135.32 is: 312,011.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,372.48 : 534,480.12 = 226,135.32 : x
  2. Step 2: Convert to fraction form
    387,372.48/534,480.12 = 226,135.32/x
  3. Step 3: Cross multiply
    387,372.48x = 534,480.12 × 226,135.32
  4. Step 4: Simplify right side
    387,372.48x = 120,864,832,969.84
  5. Step 5: Solve for x
    x = 120,864,832,969.84/387,372.48
  6. Step 6: Final answer
    x = 312,011.92

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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.