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Finding the Fourth Proportional to 283,712.24, 391,550.48 and 211,967.72

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Solution

The fourth proportional to 283,712.24, 391,550.48 and 211,967.72 is: 292,536.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,712.24 : 391,550.48 = 211,967.72 : x
  2. Step 2: Convert to fraction form
    283,712.24/391,550.48 = 211,967.72/x
  3. Step 3: Cross multiply
    283,712.24x = 391,550.48 × 211,967.72
  4. Step 4: Simplify right side
    283,712.24x = 82,996,062,510.51
  5. Step 5: Solve for x
    x = 82,996,062,510.51/283,712.24
  6. Step 6: Final answer
    x = 292,536.07

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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.