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Finding the Fourth Proportional to 266,554.41, 399,634.10 and 161,348.49

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Solution

The fourth proportional to 266,554.41, 399,634.10 and 161,348.49 is: 241,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,554.41 : 399,634.10 = 161,348.49 : x
  2. Step 2: Convert to fraction form
    266,554.41/399,634.10 = 161,348.49/x
  3. Step 3: Cross multiply
    266,554.41x = 399,634.10 × 161,348.49
  4. Step 4: Simplify right side
    266,554.41x = 64,480,357,780.77
  5. Step 5: Solve for x
    x = 64,480,357,780.77/266,554.41
  6. Step 6: Final answer
    x = 241,903.17

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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.