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Finding the Fourth Proportional to 310,877.82, 428,980.77 and 174,908.77

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Solution

The fourth proportional to 310,877.82, 428,980.77 and 174,908.77 is: 241,356.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,877.82 : 428,980.77 = 174,908.77 : x
  2. Step 2: Convert to fraction form
    310,877.82/428,980.77 = 174,908.77/x
  3. Step 3: Cross multiply
    310,877.82x = 428,980.77 × 174,908.77
  4. Step 4: Simplify right side
    310,877.82x = 75,032,497,761.90
  5. Step 5: Solve for x
    x = 75,032,497,761.90/310,877.82
  6. Step 6: Final answer
    x = 241,356.87

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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.