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Finding the Fourth Proportional to 361,872.01, 499,373.73 and 208,905.03

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Solution

The fourth proportional to 361,872.01, 499,373.73 and 208,905.03 is: 288,283.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,872.01 : 499,373.73 = 208,905.03 : x
  2. Step 2: Convert to fraction form
    361,872.01/499,373.73 = 208,905.03/x
  3. Step 3: Cross multiply
    361,872.01x = 499,373.73 × 208,905.03
  4. Step 4: Simplify right side
    361,872.01x = 104,321,684,046.86
  5. Step 5: Solve for x
    x = 104,321,684,046.86/361,872.01
  6. Step 6: Final answer
    x = 288,283.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.