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Finding the Fourth Proportional to 302,105.16, 453,128.32 and 91,744.92

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Solution

The fourth proportional to 302,105.16, 453,128.32 and 91,744.92 is: 137,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,105.16 : 453,128.32 = 91,744.92 : x
  2. Step 2: Convert to fraction form
    302,105.16/453,128.32 = 91,744.92/x
  3. Step 3: Cross multiply
    302,105.16x = 453,128.32 × 91,744.92
  4. Step 4: Simplify right side
    302,105.16x = 41,572,221,468.13
  5. Step 5: Solve for x
    x = 41,572,221,468.13/302,105.16
  6. Step 6: Final answer
    x = 137,608.45

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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.