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Finding the Fourth Proportional to 339,285.90, 468,006.18 and 243,920.54

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Solution

The fourth proportional to 339,285.90, 468,006.18 and 243,920.54 is: 336,460.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,285.90 : 468,006.18 = 243,920.54 : x
  2. Step 2: Convert to fraction form
    339,285.90/468,006.18 = 243,920.54/x
  3. Step 3: Cross multiply
    339,285.90x = 468,006.18 × 243,920.54
  4. Step 4: Simplify right side
    339,285.90x = 114,156,320,148.94
  5. Step 5: Solve for x
    x = 114,156,320,148.94/339,285.90
  6. Step 6: Final answer
    x = 336,460.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.