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Finding the Fourth Proportional to 266,011.80, 367,105.12 and 145,159.72

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Solution

The fourth proportional to 266,011.80, 367,105.12 and 145,159.72 is: 200,325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,011.80 : 367,105.12 = 145,159.72 : x
  2. Step 2: Convert to fraction form
    266,011.80/367,105.12 = 145,159.72/x
  3. Step 3: Cross multiply
    266,011.80x = 367,105.12 × 145,159.72
  4. Step 4: Simplify right side
    266,011.80x = 53,288,876,429.77
  5. Step 5: Solve for x
    x = 53,288,876,429.77/266,011.80
  6. Step 6: Final answer
    x = 200,325.24

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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.