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Finding the Fourth Proportional to 173,310.78, 260,005.05 and 54,985.98

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Solution

The fourth proportional to 173,310.78, 260,005.05 and 54,985.98 is: 82,491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,310.78 : 260,005.05 = 54,985.98 : x
  2. Step 2: Convert to fraction form
    173,310.78/260,005.05 = 54,985.98/x
  3. Step 3: Cross multiply
    173,310.78x = 260,005.05 × 54,985.98
  4. Step 4: Simplify right side
    173,310.78x = 14,296,632,479.20
  5. Step 5: Solve for x
    x = 14,296,632,479.20/173,310.78
  6. Step 6: Final answer
    x = 82,491.31

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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.