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Finding the Fourth Proportional to 303,007.28, 418,152.12 and 168,879.92

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Solution

The fourth proportional to 303,007.28, 418,152.12 and 168,879.92 is: 233,055.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,007.28 : 418,152.12 = 168,879.92 : x
  2. Step 2: Convert to fraction form
    303,007.28/418,152.12 = 168,879.92/x
  3. Step 3: Cross multiply
    303,007.28x = 418,152.12 × 168,879.92
  4. Step 4: Simplify right side
    303,007.28x = 70,617,496,573.43
  5. Step 5: Solve for x
    x = 70,617,496,573.43/303,007.28
  6. Step 6: Final answer
    x = 233,055.45

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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.