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Finding the Fourth Proportional to 303,370.38, 418,632.30 and 167,405.40

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Solution

The fourth proportional to 303,370.38, 418,632.30 and 167,405.40 is: 231,009.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,370.38 : 418,632.30 = 167,405.40 : x
  2. Step 2: Convert to fraction form
    303,370.38/418,632.30 = 167,405.40/x
  3. Step 3: Cross multiply
    303,370.38x = 418,632.30 × 167,405.40
  4. Step 4: Simplify right side
    303,370.38x = 70,081,307,634.42
  5. Step 5: Solve for x
    x = 70,081,307,634.42/303,370.38
  6. Step 6: Final answer
    x = 231,009.06

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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.