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Finding the Fourth Proportional to 367,917.80, 551,876.70 and 339,924.20

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Solution

The fourth proportional to 367,917.80, 551,876.70 and 339,924.20 is: 509,886.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,917.80 : 551,876.70 = 339,924.20 : x
  2. Step 2: Convert to fraction form
    367,917.80/551,876.70 = 339,924.20/x
  3. Step 3: Cross multiply
    367,917.80x = 551,876.70 × 339,924.20
  4. Step 4: Simplify right side
    367,917.80x = 187,596,245,746.14
  5. Step 5: Solve for x
    x = 187,596,245,746.14/367,917.80
  6. Step 6: Final answer
    x = 509,886.30

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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.