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Finding the Fourth Proportional to 270,128.60, 404,658.30 and 236,886.20

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Solution

The fourth proportional to 270,128.60, 404,658.30 and 236,886.20 is: 354,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,128.60 : 404,658.30 = 236,886.20 : x
  2. Step 2: Convert to fraction form
    270,128.60/404,658.30 = 236,886.20/x
  3. Step 3: Cross multiply
    270,128.60x = 404,658.30 × 236,886.20
  4. Step 4: Simplify right side
    270,128.60x = 95,857,966,985.46
  5. Step 5: Solve for x
    x = 95,857,966,985.46/270,128.60
  6. Step 6: Final answer
    x = 354,860.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.