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Finding the Fourth Proportional to 288,279.49, 432,420.77 and 189,067.95

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Solution

The fourth proportional to 288,279.49, 432,420.77 and 189,067.95 is: 283,602.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,279.49 : 432,420.77 = 189,067.95 : x
  2. Step 2: Convert to fraction form
    288,279.49/432,420.77 = 189,067.95/x
  3. Step 3: Cross multiply
    288,279.49x = 432,420.77 × 189,067.95
  4. Step 4: Simplify right side
    288,279.49x = 81,756,907,246.05
  5. Step 5: Solve for x
    x = 81,756,907,246.05/288,279.49
  6. Step 6: Final answer
    x = 283,602.93

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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.