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Finding the Fourth Proportional to 217,444.40, 325,907.40 and 91,084.40

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Solution

The fourth proportional to 217,444.40, 325,907.40 and 91,084.40 is: 136,518.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,444.40 : 325,907.40 = 91,084.40 : x
  2. Step 2: Convert to fraction form
    217,444.40/325,907.40 = 91,084.40/x
  3. Step 3: Cross multiply
    217,444.40x = 325,907.40 × 91,084.40
  4. Step 4: Simplify right side
    217,444.40x = 29,685,079,984.56
  5. Step 5: Solve for x
    x = 29,685,079,984.56/217,444.40
  6. Step 6: Final answer
    x = 136,518.02

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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.