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Finding the Fourth Proportional to 453,782.64, 680,673.96 and 121,350

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Solution

The fourth proportional to 453,782.64, 680,673.96 and 121,350 is: 182,025

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,782.64 : 680,673.96 = 121,350 : x
  2. Step 2: Convert to fraction form
    453,782.64/680,673.96 = 121,350/x
  3. Step 3: Cross multiply
    453,782.64x = 680,673.96 × 121,350
  4. Step 4: Simplify right side
    453,782.64x = 82,599,785,046
  5. Step 5: Solve for x
    x = 82,599,785,046/453,782.64
  6. Step 6: Final answer
    x = 182,025

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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.