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Finding the Fourth Proportional to 283,570.48, 391,354.84 and 211,825.95

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Solution

The fourth proportional to 283,570.48, 391,354.84 and 211,825.95 is: 292,340.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,570.48 : 391,354.84 = 211,825.95 : x
  2. Step 2: Convert to fraction form
    283,570.48/391,354.84 = 211,825.95/x
  3. Step 3: Cross multiply
    283,570.48x = 391,354.84 × 211,825.95
  4. Step 4: Simplify right side
    283,570.48x = 82,899,109,567.30
  5. Step 5: Solve for x
    x = 82,899,109,567.30/283,570.48
  6. Step 6: Final answer
    x = 292,340.41

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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.