Home / 308,738.20-463,107.30-121,725.40

Finding the Fourth Proportional to 308,738.20, 463,107.30 and 121,725.40

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Solution

The fourth proportional to 308,738.20, 463,107.30 and 121,725.40 is: 182,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,738.20 : 463,107.30 = 121,725.40 : x
  2. Step 2: Convert to fraction form
    308,738.20/463,107.30 = 121,725.40/x
  3. Step 3: Cross multiply
    308,738.20x = 463,107.30 × 121,725.40
  4. Step 4: Simplify right side
    308,738.20x = 56,371,921,335.42
  5. Step 5: Solve for x
    x = 56,371,921,335.42/308,738.20
  6. Step 6: Final answer
    x = 182,588.10

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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.