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Finding the Fourth Proportional to 360,758.76, 498,047.30 and 217,555.08

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Solution

The fourth proportional to 360,758.76, 498,047.30 and 217,555.08 is: 300,346.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,758.76 : 498,047.30 = 217,555.08 : x
  2. Step 2: Convert to fraction form
    360,758.76/498,047.30 = 217,555.08/x
  3. Step 3: Cross multiply
    360,758.76x = 498,047.30 × 217,555.08
  4. Step 4: Simplify right side
    360,758.76x = 108,352,720,195.28
  5. Step 5: Solve for x
    x = 108,352,720,195.28/360,758.76
  6. Step 6: Final answer
    x = 300,346.75

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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.