Home / 399,824.32-551,667.36-238,705.60

Finding the Fourth Proportional to 399,824.32, 551,667.36 and 238,705.60

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Solution

The fourth proportional to 399,824.32, 551,667.36 and 238,705.60 is: 329,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,824.32 : 551,667.36 = 238,705.60 : x
  2. Step 2: Convert to fraction form
    399,824.32/551,667.36 = 238,705.60/x
  3. Step 3: Cross multiply
    399,824.32x = 551,667.36 × 238,705.60
  4. Step 4: Simplify right side
    399,824.32x = 131,686,088,169.22
  5. Step 5: Solve for x
    x = 131,686,088,169.22/399,824.32
  6. Step 6: Final answer
    x = 329,359.88

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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.