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Finding the Fourth Proportional to 217,341.42, 325,984.41 and 84,130.53

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Solution

The fourth proportional to 217,341.42, 325,984.41 and 84,130.53 is: 126,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,341.42 : 325,984.41 = 84,130.53 : x
  2. Step 2: Convert to fraction form
    217,341.42/325,984.41 = 84,130.53/x
  3. Step 3: Cross multiply
    217,341.42x = 325,984.41 × 84,130.53
  4. Step 4: Simplify right side
    217,341.42x = 27,425,241,185.04
  5. Step 5: Solve for x
    x = 27,425,241,185.04/217,341.42
  6. Step 6: Final answer
    x = 126,185.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.