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Finding the Fourth Proportional to 344,405.61, 475,285.43 and 189,363.47

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Solution

The fourth proportional to 344,405.61, 475,285.43 and 189,363.47 is: 261,324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,405.61 : 475,285.43 = 189,363.47 : x
  2. Step 2: Convert to fraction form
    344,405.61/475,285.43 = 189,363.47/x
  3. Step 3: Cross multiply
    344,405.61x = 475,285.43 × 189,363.47
  4. Step 4: Simplify right side
    344,405.61x = 90,001,696,362.22
  5. Step 5: Solve for x
    x = 90,001,696,362.22/344,405.61
  6. Step 6: Final answer
    x = 261,324.71

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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.