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Finding the Fourth Proportional to 217,460.44, 300,097.52 and 121,965.12

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Solution

The fourth proportional to 217,460.44, 300,097.52 and 121,965.12 is: 168,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,460.44 : 300,097.52 = 121,965.12 : x
  2. Step 2: Convert to fraction form
    217,460.44/300,097.52 = 121,965.12/x
  3. Step 3: Cross multiply
    217,460.44x = 300,097.52 × 121,965.12
  4. Step 4: Simplify right side
    217,460.44x = 36,601,430,038.50
  5. Step 5: Solve for x
    x = 36,601,430,038.50/217,460.44
  6. Step 6: Final answer
    x = 168,313.05

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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.