Home / 315,105.28-434,845.01-171,864.88

Finding the Fourth Proportional to 315,105.28, 434,845.01 and 171,864.88

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Solution

The fourth proportional to 315,105.28, 434,845.01 and 171,864.88 is: 237,173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,105.28 : 434,845.01 = 171,864.88 : x
  2. Step 2: Convert to fraction form
    315,105.28/434,845.01 = 171,864.88/x
  3. Step 3: Cross multiply
    315,105.28x = 434,845.01 × 171,864.88
  4. Step 4: Simplify right side
    315,105.28x = 74,734,584,804.80
  5. Step 5: Solve for x
    x = 74,734,584,804.80/315,105.28
  6. Step 6: Final answer
    x = 237,173.38

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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.