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Finding the Fourth Proportional to 266,709.79, 400,377.24 and 210,587.73

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Solution

The fourth proportional to 266,709.79, 400,377.24 and 210,587.73 is: 316,128.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,709.79 : 400,377.24 = 210,587.73 : x
  2. Step 2: Convert to fraction form
    266,709.79/400,377.24 = 210,587.73/x
  3. Step 3: Cross multiply
    266,709.79x = 400,377.24 × 210,587.73
  4. Step 4: Simplify right side
    266,709.79x = 84,314,534,115.27
  5. Step 5: Solve for x
    x = 84,314,534,115.27/266,709.79
  6. Step 6: Final answer
    x = 316,128.38

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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.