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Finding the Fourth Proportional to 361,813.68, 499,332.84 and 200,720.72

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Solution

The fourth proportional to 361,813.68, 499,332.84 and 200,720.72 is: 277,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,813.68 : 499,332.84 = 200,720.72 : x
  2. Step 2: Convert to fraction form
    361,813.68/499,332.84 = 200,720.72/x
  3. Step 3: Cross multiply
    361,813.68x = 499,332.84 × 200,720.72
  4. Step 4: Simplify right side
    361,813.68x = 100,226,447,164.45
  5. Step 5: Solve for x
    x = 100,226,447,164.45/361,813.68
  6. Step 6: Final answer
    x = 277,011.22

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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.