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Finding the Fourth Proportional to 387,760.34, 535,113.06 and 236,857.34

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Solution

The fourth proportional to 387,760.34, 535,113.06 and 236,857.34 is: 326,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,760.34 : 535,113.06 = 236,857.34 : x
  2. Step 2: Convert to fraction form
    387,760.34/535,113.06 = 236,857.34/x
  3. Step 3: Cross multiply
    387,760.34x = 535,113.06 × 236,857.34
  4. Step 4: Simplify right side
    387,760.34x = 126,745,455,990.86
  5. Step 5: Solve for x
    x = 126,745,455,990.86/387,760.34
  6. Step 6: Final answer
    x = 326,865.44

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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.