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Finding the Fourth Proportional to 388,324.61, 535,429.43 and 265,876.37

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Solution

The fourth proportional to 388,324.61, 535,429.43 and 265,876.37 is: 366,595.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,324.61 : 535,429.43 = 265,876.37 : x
  2. Step 2: Convert to fraction form
    388,324.61/535,429.43 = 265,876.37/x
  3. Step 3: Cross multiply
    388,324.61x = 535,429.43 × 265,876.37
  4. Step 4: Simplify right side
    388,324.61x = 142,358,029,233.04
  5. Step 5: Solve for x
    x = 142,358,029,233.04/388,324.61
  6. Step 6: Final answer
    x = 366,595.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.