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Finding the Fourth Proportional to 303,385.59, 418,680.99 and 167,428.35

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Solution

The fourth proportional to 303,385.59, 418,680.99 and 167,428.35 is: 231,056.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,385.59 : 418,680.99 = 167,428.35 : x
  2. Step 2: Convert to fraction form
    303,385.59/418,680.99 = 167,428.35/x
  3. Step 3: Cross multiply
    303,385.59x = 418,680.99 × 167,428.35
  4. Step 4: Simplify right side
    303,385.59x = 70,099,067,332.07
  5. Step 5: Solve for x
    x = 70,099,067,332.07/303,385.59
  6. Step 6: Final answer
    x = 231,056.02

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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.