Home / 283,147.22-390,743.22-155,822.81

Finding the Fourth Proportional to 283,147.22, 390,743.22 and 155,822.81

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Solution

The fourth proportional to 283,147.22, 390,743.22 and 155,822.81 is: 215,035.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,147.22 : 390,743.22 = 155,822.81 : x
  2. Step 2: Convert to fraction form
    283,147.22/390,743.22 = 155,822.81/x
  3. Step 3: Cross multiply
    283,147.22x = 390,743.22 × 155,822.81
  4. Step 4: Simplify right side
    283,147.22x = 60,886,706,528.85
  5. Step 5: Solve for x
    x = 60,886,706,528.85/283,147.22
  6. Step 6: Final answer
    x = 215,035.51

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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.