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Finding the Fourth Proportional to 387,758.34, 535,110.30 and 236,855.34

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Solution

The fourth proportional to 387,758.34, 535,110.30 and 236,855.34 is: 326,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,758.34 : 535,110.30 = 236,855.34 : x
  2. Step 2: Convert to fraction form
    387,758.34/535,110.30 = 236,855.34/x
  3. Step 3: Cross multiply
    387,758.34x = 535,110.30 × 236,855.34
  4. Step 4: Simplify right side
    387,758.34x = 126,743,732,044.00
  5. Step 5: Solve for x
    x = 126,743,732,044.00/387,758.34
  6. Step 6: Final answer
    x = 326,862.68

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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.