Home / 315,121.42-434,867.55-171,881.46

Finding the Fourth Proportional to 315,121.42, 434,867.55 and 171,881.46

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Solution

The fourth proportional to 315,121.42, 434,867.55 and 171,881.46 is: 237,196.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,121.42 : 434,867.55 = 171,881.46 : x
  2. Step 2: Convert to fraction form
    315,121.42/434,867.55 = 171,881.46/x
  3. Step 3: Cross multiply
    315,121.42x = 434,867.55 × 171,881.46
  4. Step 4: Simplify right side
    315,121.42x = 74,745,669,722.90
  5. Step 5: Solve for x
    x = 74,745,669,722.90/315,121.42
  6. Step 6: Final answer
    x = 237,196.41

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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.