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Finding the Fourth Proportional to 355,424.69, 532,677.75 and 265,976.39

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Solution

The fourth proportional to 355,424.69, 532,677.75 and 265,976.39 is: 398,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,424.69 : 532,677.75 = 265,976.39 : x
  2. Step 2: Convert to fraction form
    355,424.69/532,677.75 = 265,976.39/x
  3. Step 3: Cross multiply
    355,424.69x = 532,677.75 × 265,976.39
  4. Step 4: Simplify right side
    355,424.69x = 141,679,704,978.32
  5. Step 5: Solve for x
    x = 141,679,704,978.32/355,424.69
  6. Step 6: Final answer
    x = 398,620.89

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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.