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Finding the Fourth Proportional to 264,802.88, 397,164 and 87,302.72

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Solution

The fourth proportional to 264,802.88, 397,164 and 87,302.72 is: 130,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,802.88 : 397,164 = 87,302.72 : x
  2. Step 2: Convert to fraction form
    264,802.88/397,164 = 87,302.72/x
  3. Step 3: Cross multiply
    264,802.88x = 397,164 × 87,302.72
  4. Step 4: Simplify right side
    264,802.88x = 34,673,497,486.08
  5. Step 5: Solve for x
    x = 34,673,497,486.08/264,802.88
  6. Step 6: Final answer
    x = 130,940.79

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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.