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Finding the Fourth Proportional to 266,997.74, 400,529.61 and 98,518.95

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Solution

The fourth proportional to 266,997.74, 400,529.61 and 98,518.95 is: 147,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,997.74 : 400,529.61 = 98,518.95 : x
  2. Step 2: Convert to fraction form
    266,997.74/400,529.61 = 98,518.95/x
  3. Step 3: Cross multiply
    266,997.74x = 400,529.61 × 98,518.95
  4. Step 4: Simplify right side
    266,997.74x = 39,459,756,621.11
  5. Step 5: Solve for x
    x = 39,459,756,621.11/266,997.74
  6. Step 6: Final answer
    x = 147,790.60

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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.