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Finding the Fourth Proportional to 152,700.78, 228,940.43 and 102,656.73

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Solution

The fourth proportional to 152,700.78, 228,940.43 and 102,656.73 is: 153,910.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,700.78 : 228,940.43 = 102,656.73 : x
  2. Step 2: Convert to fraction form
    152,700.78/228,940.43 = 102,656.73/x
  3. Step 3: Cross multiply
    152,700.78x = 228,940.43 × 102,656.73
  4. Step 4: Simplify right side
    152,700.78x = 23,502,275,395.31
  5. Step 5: Solve for x
    x = 23,502,275,395.31/152,700.78
  6. Step 6: Final answer
    x = 153,910.64

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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.