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Finding the Fourth Proportional to 264,878.04, 397,365.94 and 87,397.32

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Solution

The fourth proportional to 264,878.04, 397,365.94 and 87,397.32 is: 131,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,878.04 : 397,365.94 = 87,397.32 : x
  2. Step 2: Convert to fraction form
    264,878.04/397,365.94 = 87,397.32/x
  3. Step 3: Cross multiply
    264,878.04x = 397,365.94 × 87,397.32
  4. Step 4: Simplify right side
    264,878.04x = 34,728,718,771.71
  5. Step 5: Solve for x
    x = 34,728,718,771.71/264,878.04
  6. Step 6: Final answer
    x = 131,112.11

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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.