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Finding the Fourth Proportional to 387,274.72, 581,139.46 and 162,617.88

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Solution

The fourth proportional to 387,274.72, 581,139.46 and 162,617.88 is: 244,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,274.72 : 581,139.46 = 162,617.88 : x
  2. Step 2: Convert to fraction form
    387,274.72/581,139.46 = 162,617.88/x
  3. Step 3: Cross multiply
    387,274.72x = 581,139.46 × 162,617.88
  4. Step 4: Simplify right side
    387,274.72x = 94,503,666,969.54
  5. Step 5: Solve for x
    x = 94,503,666,969.54/387,274.72
  6. Step 6: Final answer
    x = 244,022.30

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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.