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Finding the Fourth Proportional to 220,980.21, 304,954.70 and 133,767.32

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Solution

The fourth proportional to 220,980.21, 304,954.70 and 133,767.32 is: 184,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,980.21 : 304,954.70 = 133,767.32 : x
  2. Step 2: Convert to fraction form
    220,980.21/304,954.70 = 133,767.32/x
  3. Step 3: Cross multiply
    220,980.21x = 304,954.70 × 133,767.32
  4. Step 4: Simplify right side
    220,980.21x = 40,792,970,746.79
  5. Step 5: Solve for x
    x = 40,792,970,746.79/220,980.21
  6. Step 6: Final answer
    x = 184,600.11

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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.