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Finding the Fourth Proportional to 305,977.90, 422,128.56 and 176,892.62

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Solution

The fourth proportional to 305,977.90, 422,128.56 and 176,892.62 is: 244,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,977.90 : 422,128.56 = 176,892.62 : x
  2. Step 2: Convert to fraction form
    305,977.90/422,128.56 = 176,892.62/x
  3. Step 3: Cross multiply
    305,977.90x = 422,128.56 × 176,892.62
  4. Step 4: Simplify right side
    305,977.90x = 74,671,426,955.23
  5. Step 5: Solve for x
    x = 74,671,426,955.23/305,977.90
  6. Step 6: Final answer
    x = 244,041.90

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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.