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Finding the Fourth Proportional to 543,931.63, 816,251.38 and 206,975.07

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Solution

The fourth proportional to 543,931.63, 816,251.38 and 206,975.07 is: 310,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,931.63 : 816,251.38 = 206,975.07 : x
  2. Step 2: Convert to fraction form
    543,931.63/816,251.38 = 206,975.07/x
  3. Step 3: Cross multiply
    543,931.63x = 816,251.38 × 206,975.07
  4. Step 4: Simplify right side
    543,931.63x = 168,943,685,995.66
  5. Step 5: Solve for x
    x = 168,943,685,995.66/543,931.63
  6. Step 6: Final answer
    x = 310,597.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.