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Finding the Fourth Proportional to 305,937.65, 422,169.20 and 176,884.40

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Solution

The fourth proportional to 305,937.65, 422,169.20 and 176,884.40 is: 244,086.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,937.65 : 422,169.20 = 176,884.40 : x
  2. Step 2: Convert to fraction form
    305,937.65/422,169.20 = 176,884.40/x
  3. Step 3: Cross multiply
    305,937.65x = 422,169.20 × 176,884.40
  4. Step 4: Simplify right side
    305,937.65x = 74,675,145,784.93
  5. Step 5: Solve for x
    x = 74,675,145,784.93/305,937.65
  6. Step 6: Final answer
    x = 244,086.16

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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.