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Finding the Fourth Proportional to 347,016.40, 520,524.60 and 169,637.20

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Solution

The fourth proportional to 347,016.40, 520,524.60 and 169,637.20 is: 254,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,016.40 : 520,524.60 = 169,637.20 : x
  2. Step 2: Convert to fraction form
    347,016.40/520,524.60 = 169,637.20/x
  3. Step 3: Cross multiply
    347,016.40x = 520,524.60 × 169,637.20
  4. Step 4: Simplify right side
    347,016.40x = 88,300,335,675.12
  5. Step 5: Solve for x
    x = 88,300,335,675.12/347,016.40
  6. Step 6: Final answer
    x = 254,455.80

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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.