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Finding the Fourth Proportional to 303,520.13, 418,857.78 and 169,384.13

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Solution

The fourth proportional to 303,520.13, 418,857.78 and 169,384.13 is: 233,750.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,520.13 : 418,857.78 = 169,384.13 : x
  2. Step 2: Convert to fraction form
    303,520.13/418,857.78 = 169,384.13/x
  3. Step 3: Cross multiply
    303,520.13x = 418,857.78 × 169,384.13
  4. Step 4: Simplify right side
    303,520.13x = 70,947,858,564.74
  5. Step 5: Solve for x
    x = 70,947,858,564.74/303,520.13
  6. Step 6: Final answer
    x = 233,750.10

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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.