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Finding the Fourth Proportional to 288,682.22, 429,979.26 and 275,729.71

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Solution

The fourth proportional to 288,682.22, 429,979.26 and 275,729.71 is: 410,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,682.22 : 429,979.26 = 275,729.71 : x
  2. Step 2: Convert to fraction form
    288,682.22/429,979.26 = 275,729.71/x
  3. Step 3: Cross multiply
    288,682.22x = 429,979.26 × 275,729.71
  4. Step 4: Simplify right side
    288,682.22x = 118,558,056,665.82
  5. Step 5: Solve for x
    x = 118,558,056,665.82/288,682.22
  6. Step 6: Final answer
    x = 410,687.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.