Home / 217,412.22-300,031.98-131,359.26

Finding the Fourth Proportional to 217,412.22, 300,031.98 and 131,359.26

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Solution

The fourth proportional to 217,412.22, 300,031.98 and 131,359.26 is: 181,277.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,412.22 : 300,031.98 = 131,359.26 : x
  2. Step 2: Convert to fraction form
    217,412.22/300,031.98 = 131,359.26/x
  3. Step 3: Cross multiply
    217,412.22x = 300,031.98 × 131,359.26
  4. Step 4: Simplify right side
    217,412.22x = 39,411,978,869.13
  5. Step 5: Solve for x
    x = 39,411,978,869.13/217,412.22
  6. Step 6: Final answer
    x = 181,277.66

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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.