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Finding the Fourth Proportional to 347,291.30, 479,109.92 and 203,986.74

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Solution

The fourth proportional to 347,291.30, 479,109.92 and 203,986.74 is: 281,412.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,291.30 : 479,109.92 = 203,986.74 : x
  2. Step 2: Convert to fraction form
    347,291.30/479,109.92 = 203,986.74/x
  3. Step 3: Cross multiply
    347,291.30x = 479,109.92 × 203,986.74
  4. Step 4: Simplify right side
    347,291.30x = 97,732,069,662.53
  5. Step 5: Solve for x
    x = 97,732,069,662.53/347,291.30
  6. Step 6: Final answer
    x = 281,412.38

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1.5x scale

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.