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Finding the Fourth Proportional to 266,886.45, 400,329.95 and 109,114.91

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Solution

The fourth proportional to 266,886.45, 400,329.95 and 109,114.91 is: 163,672.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,886.45 : 400,329.95 = 109,114.91 : x
  2. Step 2: Convert to fraction form
    266,886.45/400,329.95 = 109,114.91/x
  3. Step 3: Cross multiply
    266,886.45x = 400,329.95 × 109,114.91
  4. Step 4: Simplify right side
    266,886.45x = 43,681,963,917.33
  5. Step 5: Solve for x
    x = 43,681,963,917.33/266,886.45
  6. Step 6: Final answer
    x = 163,672.47

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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.