Home / 283,066.82-390,638.17-155,742.65

Finding the Fourth Proportional to 283,066.82, 390,638.17 and 155,742.65

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Solution

The fourth proportional to 283,066.82, 390,638.17 and 155,742.65 is: 214,928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,066.82 : 390,638.17 = 155,742.65 : x
  2. Step 2: Convert to fraction form
    283,066.82/390,638.17 = 155,742.65/x
  3. Step 3: Cross multiply
    283,066.82x = 390,638.17 × 155,742.65
  4. Step 4: Simplify right side
    283,066.82x = 60,839,024,958.22
  5. Step 5: Solve for x
    x = 60,839,024,958.22/283,066.82
  6. Step 6: Final answer
    x = 214,928.14

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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.