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Finding the Fourth Proportional to 310,072.90, 427,895.14 and 174,107.92

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Solution

The fourth proportional to 310,072.90, 427,895.14 and 174,107.92 is: 240,265.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,072.90 : 427,895.14 = 174,107.92 : x
  2. Step 2: Convert to fraction form
    310,072.90/427,895.14 = 174,107.92/x
  3. Step 3: Cross multiply
    310,072.90x = 427,895.14 × 174,107.92
  4. Step 4: Simplify right side
    310,072.90x = 74,499,932,803.51
  5. Step 5: Solve for x
    x = 74,499,932,803.51/310,072.90
  6. Step 6: Final answer
    x = 240,265.86

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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.