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Finding the Fourth Proportional to 333,781.66, 500,667.02 and 81,064.23

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Solution

The fourth proportional to 333,781.66, 500,667.02 and 81,064.23 is: 121,595.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,781.66 : 500,667.02 = 81,064.23 : x
  2. Step 2: Convert to fraction form
    333,781.66/500,667.02 = 81,064.23/x
  3. Step 3: Cross multiply
    333,781.66x = 500,667.02 × 81,064.23
  4. Step 4: Simplify right side
    333,781.66x = 40,586,186,462.69
  5. Step 5: Solve for x
    x = 40,586,186,462.69/333,781.66
  6. Step 6: Final answer
    x = 121,595.02

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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.