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Finding the Fourth Proportional to 453,749.64, 680,624.46 and 121,317

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Solution

The fourth proportional to 453,749.64, 680,624.46 and 121,317 is: 181,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,749.64 : 680,624.46 = 121,317 : x
  2. Step 2: Convert to fraction form
    453,749.64/680,624.46 = 121,317/x
  3. Step 3: Cross multiply
    453,749.64x = 680,624.46 × 121,317
  4. Step 4: Simplify right side
    453,749.64x = 82,571,317,613.82
  5. Step 5: Solve for x
    x = 82,571,317,613.82/453,749.64
  6. Step 6: Final answer
    x = 181,975.50

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Similar ratio
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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.