Home / 408,258.02-611,076.75-218,243.22

Finding the Fourth Proportional to 408,258.02, 611,076.75 and 218,243.22

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Solution

The fourth proportional to 408,258.02, 611,076.75 and 218,243.22 is: 326,664.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,258.02 : 611,076.75 = 218,243.22 : x
  2. Step 2: Convert to fraction form
    408,258.02/611,076.75 = 218,243.22/x
  3. Step 3: Cross multiply
    408,258.02x = 611,076.75 × 218,243.22
  4. Step 4: Simplify right side
    408,258.02x = 133,363,357,587.14
  5. Step 5: Solve for x
    x = 133,363,357,587.14/408,258.02
  6. Step 6: Final answer
    x = 326,664.39

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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.