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Finding the Fourth Proportional to 340,262.73, 510,394.10 and 90,938.25

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Solution

The fourth proportional to 340,262.73, 510,394.10 and 90,938.25 is: 136,407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,262.73 : 510,394.10 = 90,938.25 : x
  2. Step 2: Convert to fraction form
    340,262.73/510,394.10 = 90,938.25/x
  3. Step 3: Cross multiply
    340,262.73x = 510,394.10 × 90,938.25
  4. Step 4: Simplify right side
    340,262.73x = 46,414,345,809.63
  5. Step 5: Solve for x
    x = 46,414,345,809.63/340,262.73
  6. Step 6: Final answer
    x = 136,407.38

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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.