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Finding the Fourth Proportional to 266,037.32, 398,020.80 and 243,698.34

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Solution

The fourth proportional to 266,037.32, 398,020.80 and 243,698.34 is: 364,599.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,037.32 : 398,020.80 = 243,698.34 : x
  2. Step 2: Convert to fraction form
    266,037.32/398,020.80 = 243,698.34/x
  3. Step 3: Cross multiply
    266,037.32x = 398,020.80 × 243,698.34
  4. Step 4: Simplify right side
    266,037.32x = 96,997,008,245.47
  5. Step 5: Solve for x
    x = 96,997,008,245.47/266,037.32
  6. Step 6: Final answer
    x = 364,599.25

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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.