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Finding the Fourth Proportional to 314,882.60, 434,524.92 and 171,639.56

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Solution

The fourth proportional to 314,882.60, 434,524.92 and 171,639.56 is: 236,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,882.60 : 434,524.92 = 171,639.56 : x
  2. Step 2: Convert to fraction form
    314,882.60/434,524.92 = 171,639.56/x
  3. Step 3: Cross multiply
    314,882.60x = 434,524.92 × 171,639.56
  4. Step 4: Simplify right side
    314,882.60x = 74,581,666,077.84
  5. Step 5: Solve for x
    x = 74,581,666,077.84/314,882.60
  6. Step 6: Final answer
    x = 236,855.47

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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.