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Finding the Fourth Proportional to 510.83, 767.26 and 437.68

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Solution

The fourth proportional to 510.83, 767.26 and 437.68 is: 657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.83 : 767.26 = 437.68 : x
  2. Step 2: Convert to fraction form
    510.83/767.26 = 437.68/x
  3. Step 3: Cross multiply
    510.83x = 767.26 × 437.68
  4. Step 4: Simplify right side
    510.83x = 335,815.86
  5. Step 5: Solve for x
    x = 335,815.86/510.83
  6. Step 6: Final answer
    x = 657.39

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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.