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Finding the Fourth Proportional to 277,787.58, 416,681.58 and 67,425.72

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Solution

The fourth proportional to 277,787.58, 416,681.58 and 67,425.72 is: 101,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,787.58 : 416,681.58 = 67,425.72 : x
  2. Step 2: Convert to fraction form
    277,787.58/416,681.58 = 67,425.72/x
  3. Step 3: Cross multiply
    277,787.58x = 416,681.58 × 67,425.72
  4. Step 4: Simplify right side
    277,787.58x = 28,095,055,542.24
  5. Step 5: Solve for x
    x = 28,095,055,542.24/277,787.58
  6. Step 6: Final answer
    x = 101,138.63

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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.