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Finding the Fourth Proportional to 264,930.29, 397,339.80 and 87,395.71

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Solution

The fourth proportional to 264,930.29, 397,339.80 and 87,395.71 is: 131,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,930.29 : 397,339.80 = 87,395.71 : x
  2. Step 2: Convert to fraction form
    264,930.29/397,339.80 = 87,395.71/x
  3. Step 3: Cross multiply
    264,930.29x = 397,339.80 × 87,395.71
  4. Step 4: Simplify right side
    264,930.29x = 34,725,793,356.19
  5. Step 5: Solve for x
    x = 34,725,793,356.19/264,930.29
  6. Step 6: Final answer
    x = 131,075.21

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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.