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Finding the Fourth Proportional to 314,682.92, 434,250.87 and 171,439.89

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Solution

The fourth proportional to 314,682.92, 434,250.87 and 171,439.89 is: 236,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,682.92 : 434,250.87 = 171,439.89 : x
  2. Step 2: Convert to fraction form
    314,682.92/434,250.87 = 171,439.89/x
  3. Step 3: Cross multiply
    314,682.92x = 434,250.87 × 171,439.89
  4. Step 4: Simplify right side
    314,682.92x = 74,447,922,520.87
  5. Step 5: Solve for x
    x = 74,447,922,520.87/314,682.92
  6. Step 6: Final answer
    x = 236,580.75

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1.5x scale

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.