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Finding the Fourth Proportional to 303,114.61, 418,288.56 and 167,154.28

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Solution

The fourth proportional to 303,114.61, 418,288.56 and 167,154.28 is: 230,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,114.61 : 418,288.56 = 167,154.28 : x
  2. Step 2: Convert to fraction form
    303,114.61/418,288.56 = 167,154.28/x
  3. Step 3: Cross multiply
    303,114.61x = 418,288.56 × 167,154.28
  4. Step 4: Simplify right side
    303,114.61x = 69,918,723,759.36
  5. Step 5: Solve for x
    x = 69,918,723,759.36/303,114.61
  6. Step 6: Final answer
    x = 230,667.62

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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.