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Finding the Fourth Proportional to 234,453.69, 323,509.55 and 138,944.97

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Solution

The fourth proportional to 234,453.69, 323,509.55 and 138,944.97 is: 191,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,453.69 : 323,509.55 = 138,944.97 : x
  2. Step 2: Convert to fraction form
    234,453.69/323,509.55 = 138,944.97/x
  3. Step 3: Cross multiply
    234,453.69x = 323,509.55 × 138,944.97
  4. Step 4: Simplify right side
    234,453.69x = 44,950,024,024.74
  5. Step 5: Solve for x
    x = 44,950,024,024.74/234,453.69
  6. Step 6: Final answer
    x = 191,722.40

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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.