Home / 218,731.43-301,827.79-123,255.11

Finding the Fourth Proportional to 218,731.43, 301,827.79 and 123,255.11

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Solution

The fourth proportional to 218,731.43, 301,827.79 and 123,255.11 is: 170,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,731.43 : 301,827.79 = 123,255.11 : x
  2. Step 2: Convert to fraction form
    218,731.43/301,827.79 = 123,255.11/x
  3. Step 3: Cross multiply
    218,731.43x = 301,827.79 × 123,255.11
  4. Step 4: Simplify right side
    218,731.43x = 37,201,817,457.51
  5. Step 5: Solve for x
    x = 37,201,817,457.51/218,731.43
  6. Step 6: Final answer
    x = 170,079.89

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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.