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Finding the Fourth Proportional to 515,066.54, 772,452.03 and 155,272.46

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Solution

The fourth proportional to 515,066.54, 772,452.03 and 155,272.46 is: 232,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,066.54 : 772,452.03 = 155,272.46 : x
  2. Step 2: Convert to fraction form
    515,066.54/772,452.03 = 155,272.46/x
  3. Step 3: Cross multiply
    515,066.54x = 772,452.03 × 155,272.46
  4. Step 4: Simplify right side
    515,066.54x = 119,940,526,930.09
  5. Step 5: Solve for x
    x = 119,940,526,930.09/515,066.54
  6. Step 6: Final answer
    x = 232,864.14

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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.