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Finding the Fourth Proportional to 277,116.64, 382,420.88 and 149,792.16

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Solution

The fourth proportional to 277,116.64, 382,420.88 and 149,792.16 is: 206,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,116.64 : 382,420.88 = 149,792.16 : x
  2. Step 2: Convert to fraction form
    277,116.64/382,420.88 = 149,792.16/x
  3. Step 3: Cross multiply
    277,116.64x = 382,420.88 × 149,792.16
  4. Step 4: Simplify right side
    277,116.64x = 57,283,649,644.30
  5. Step 5: Solve for x
    x = 57,283,649,644.30/277,116.64
  6. Step 6: Final answer
    x = 206,713.14

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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.