Home / 218,664.48-328,008.48-68,916.36

Finding the Fourth Proportional to 218,664.48, 328,008.48 and 68,916.36

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Solution

The fourth proportional to 218,664.48, 328,008.48 and 68,916.36 is: 103,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,664.48 : 328,008.48 = 68,916.36 : x
  2. Step 2: Convert to fraction form
    218,664.48/328,008.48 = 68,916.36/x
  3. Step 3: Cross multiply
    218,664.48x = 328,008.48 × 68,916.36
  4. Step 4: Simplify right side
    218,664.48x = 22,605,150,490.73
  5. Step 5: Solve for x
    x = 22,605,150,490.73/218,664.48
  6. Step 6: Final answer
    x = 103,378.25

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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.