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Finding the Fourth Proportional to 440,685.48, 608,157.54 and 239,481.48

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Solution

The fourth proportional to 440,685.48, 608,157.54 and 239,481.48 is: 330,490.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,685.48 : 608,157.54 = 239,481.48 : x
  2. Step 2: Convert to fraction form
    440,685.48/608,157.54 = 239,481.48/x
  3. Step 3: Cross multiply
    440,685.48x = 608,157.54 × 239,481.48
  4. Step 4: Simplify right side
    440,685.48x = 145,642,467,752.36
  5. Step 5: Solve for x
    x = 145,642,467,752.36/440,685.48
  6. Step 6: Final answer
    x = 330,490.73

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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.