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Finding the Fourth Proportional to 480,918, 663,697.56 and 268,950

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Solution

The fourth proportional to 480,918, 663,697.56 and 268,950 is: 371,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,918 : 663,697.56 = 268,950 : x
  2. Step 2: Convert to fraction form
    480,918/663,697.56 = 268,950/x
  3. Step 3: Cross multiply
    480,918x = 663,697.56 × 268,950
  4. Step 4: Simplify right side
    480,918x = 178,501,458,762
  5. Step 5: Solve for x
    x = 178,501,458,762/480,918
  6. Step 6: Final answer
    x = 371,168.18

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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.