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Finding the Fourth Proportional to 200,574.70, 280,279.70 and 200,574.70

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Solution

The fourth proportional to 200,574.70, 280,279.70 and 200,574.70 is: 280,279.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,574.70 : 280,279.70 = 200,574.70 : x
  2. Step 2: Convert to fraction form
    200,574.70/280,279.70 = 200,574.70/x
  3. Step 3: Cross multiply
    200,574.70x = 280,279.70 × 200,574.70
  4. Step 4: Simplify right side
    200,574.70x = 56,217,016,743.59
  5. Step 5: Solve for x
    x = 56,217,016,743.59/200,574.70
  6. Step 6: Final answer
    x = 280,279.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.