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Finding the Fourth Proportional to 333,784.23, 500,670.87 and 81,066.78

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Solution

The fourth proportional to 333,784.23, 500,670.87 and 81,066.78 is: 121,598.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,784.23 : 500,670.87 = 81,066.78 : x
  2. Step 2: Convert to fraction form
    333,784.23/500,670.87 = 81,066.78/x
  3. Step 3: Cross multiply
    333,784.23x = 500,670.87 × 81,066.78
  4. Step 4: Simplify right side
    333,784.23x = 40,587,775,270.70
  5. Step 5: Solve for x
    x = 40,587,775,270.70/333,784.23
  6. Step 6: Final answer
    x = 121,598.84

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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.