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Finding the Fourth Proportional to 388,260.30, 535,794.12 and 224,939.07

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Solution

The fourth proportional to 388,260.30, 535,794.12 and 224,939.07 is: 310,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,260.30 : 535,794.12 = 224,939.07 : x
  2. Step 2: Convert to fraction form
    388,260.30/535,794.12 = 224,939.07/x
  3. Step 3: Cross multiply
    388,260.30x = 535,794.12 × 224,939.07
  4. Step 4: Simplify right side
    388,260.30x = 120,521,031,064.27
  5. Step 5: Solve for x
    x = 120,521,031,064.27/388,260.30
  6. Step 6: Final answer
    x = 310,412.97

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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.