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Finding the Fourth Proportional to 217,056.80, 325,892.40 and 170,362.40

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Solution

The fourth proportional to 217,056.80, 325,892.40 and 170,362.40 is: 255,784.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,056.80 : 325,892.40 = 170,362.40 : x
  2. Step 2: Convert to fraction form
    217,056.80/325,892.40 = 170,362.40/x
  3. Step 3: Cross multiply
    217,056.80x = 325,892.40 × 170,362.40
  4. Step 4: Simplify right side
    217,056.80x = 55,519,811,405.76
  5. Step 5: Solve for x
    x = 55,519,811,405.76/217,056.80
  6. Step 6: Final answer
    x = 255,784.71

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1.5x scale

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.