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Finding the Fourth Proportional to 340,327.26, 510,490.86 and 91,002.78

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Solution

The fourth proportional to 340,327.26, 510,490.86 and 91,002.78 is: 136,504.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,327.26 : 510,490.86 = 91,002.78 : x
  2. Step 2: Convert to fraction form
    340,327.26/510,490.86 = 91,002.78/x
  3. Step 3: Cross multiply
    340,327.26x = 510,490.86 × 91,002.78
  4. Step 4: Simplify right side
    340,327.26x = 46,456,087,424.59
  5. Step 5: Solve for x
    x = 46,456,087,424.59/340,327.26
  6. Step 6: Final answer
    x = 136,504.16

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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.