Home / 387,276.72-581,142.46-162,619.88

Finding the Fourth Proportional to 387,276.72, 581,142.46 and 162,619.88

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Solution

The fourth proportional to 387,276.72, 581,142.46 and 162,619.88 is: 244,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,276.72 : 581,142.46 = 162,619.88 : x
  2. Step 2: Convert to fraction form
    387,276.72/581,142.46 = 162,619.88/x
  3. Step 3: Cross multiply
    387,276.72x = 581,142.46 × 162,619.88
  4. Step 4: Simplify right side
    387,276.72x = 94,505,317,108.10
  5. Step 5: Solve for x
    x = 94,505,317,108.10/387,276.72
  6. Step 6: Final answer
    x = 244,025.30

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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.