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Finding the Fourth Proportional to 228,111.64, 314,787.90 and 127,529.08

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Solution

The fourth proportional to 228,111.64, 314,787.90 and 127,529.08 is: 175,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,111.64 : 314,787.90 = 127,529.08 : x
  2. Step 2: Convert to fraction form
    228,111.64/314,787.90 = 127,529.08/x
  3. Step 3: Cross multiply
    228,111.64x = 314,787.90 × 127,529.08
  4. Step 4: Simplify right side
    228,111.64x = 40,144,611,282.13
  5. Step 5: Solve for x
    x = 40,144,611,282.13/228,111.64
  6. Step 6: Final answer
    x = 175,986.68

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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.