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Finding the Fourth Proportional to 508,338.54, 761,975.76 and 171,262.70

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Solution

The fourth proportional to 508,338.54, 761,975.76 and 171,262.70 is: 256,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,338.54 : 761,975.76 = 171,262.70 : x
  2. Step 2: Convert to fraction form
    508,338.54/761,975.76 = 171,262.70/x
  3. Step 3: Cross multiply
    508,338.54x = 761,975.76 × 171,262.70
  4. Step 4: Simplify right side
    508,338.54x = 130,498,025,992.15
  5. Step 5: Solve for x
    x = 130,498,025,992.15/508,338.54
  6. Step 6: Final answer
    x = 256,714.80

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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.