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Finding the Fourth Proportional to 284,602.78, 392,759.96 and 155,548.43

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Solution

The fourth proportional to 284,602.78, 392,759.96 and 155,548.43 is: 214,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,602.78 : 392,759.96 = 155,548.43 : x
  2. Step 2: Convert to fraction form
    284,602.78/392,759.96 = 155,548.43/x
  3. Step 3: Cross multiply
    284,602.78x = 392,759.96 × 155,548.43
  4. Step 4: Simplify right side
    284,602.78x = 61,093,192,403.32
  5. Step 5: Solve for x
    x = 61,093,192,403.32/284,602.78
  6. Step 6: Final answer
    x = 214,661.27

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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.