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Finding the Fourth Proportional to 283,387.60, 391,089.37 and 160,888.57

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Solution

The fourth proportional to 283,387.60, 391,089.37 and 160,888.57 is: 222,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,387.60 : 391,089.37 = 160,888.57 : x
  2. Step 2: Convert to fraction form
    283,387.60/391,089.37 = 160,888.57/x
  3. Step 3: Cross multiply
    283,387.60x = 391,089.37 × 160,888.57
  4. Step 4: Simplify right side
    283,387.60x = 62,921,809,481.50
  5. Step 5: Solve for x
    x = 62,921,809,481.50/283,387.60
  6. Step 6: Final answer
    x = 222,034.45

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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.