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Finding the Fourth Proportional to 266,662.98, 399,994.47 and 106,811.51

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Solution

The fourth proportional to 266,662.98, 399,994.47 and 106,811.51 is: 160,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,662.98 : 399,994.47 = 106,811.51 : x
  2. Step 2: Convert to fraction form
    266,662.98/399,994.47 = 106,811.51/x
  3. Step 3: Cross multiply
    266,662.98x = 399,994.47 × 106,811.51
  4. Step 4: Simplify right side
    266,662.98x = 42,724,011,332.38
  5. Step 5: Solve for x
    x = 42,724,011,332.38/266,662.98
  6. Step 6: Final answer
    x = 160,217.26

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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.