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Finding the Fourth Proportional to 387,512.88, 534,832.02 and 226,367.43

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Solution

The fourth proportional to 387,512.88, 534,832.02 and 226,367.43 is: 312,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,512.88 : 534,832.02 = 226,367.43 : x
  2. Step 2: Convert to fraction form
    387,512.88/534,832.02 = 226,367.43/x
  3. Step 3: Cross multiply
    387,512.88x = 534,832.02 × 226,367.43
  4. Step 4: Simplify right side
    387,512.88x = 121,068,549,849.11
  5. Step 5: Solve for x
    x = 121,068,549,849.11/387,512.88
  6. Step 6: Final answer
    x = 312,424.58

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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.