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Finding the Fourth Proportional to 347,892.68, 521,830.78 and 111,237.42

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Solution

The fourth proportional to 347,892.68, 521,830.78 and 111,237.42 is: 166,853.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,892.68 : 521,830.78 = 111,237.42 : x
  2. Step 2: Convert to fraction form
    347,892.68/521,830.78 = 111,237.42/x
  3. Step 3: Cross multiply
    347,892.68x = 521,830.78 × 111,237.42
  4. Step 4: Simplify right side
    347,892.68x = 58,047,109,643.79
  5. Step 5: Solve for x
    x = 58,047,109,643.79/347,892.68
  6. Step 6: Final answer
    x = 166,853.50

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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.