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Finding the Fourth Proportional to 456,097.80, 683,917.20 and 140,513.70

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Solution

The fourth proportional to 456,097.80, 683,917.20 and 140,513.70 is: 210,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,097.80 : 683,917.20 = 140,513.70 : x
  2. Step 2: Convert to fraction form
    456,097.80/683,917.20 = 140,513.70/x
  3. Step 3: Cross multiply
    456,097.80x = 683,917.20 × 140,513.70
  4. Step 4: Simplify right side
    456,097.80x = 96,099,736,265.64
  5. Step 5: Solve for x
    x = 96,099,736,265.64/456,097.80
  6. Step 6: Final answer
    x = 210,699.85

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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.