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Finding the Fourth Proportional to 373,296, 515,156.64 and 203,530.80

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Solution

The fourth proportional to 373,296, 515,156.64 and 203,530.80 is: 280,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,296 : 515,156.64 = 203,530.80 : x
  2. Step 2: Convert to fraction form
    373,296/515,156.64 = 203,530.80/x
  3. Step 3: Cross multiply
    373,296x = 515,156.64 × 203,530.80
  4. Step 4: Simplify right side
    373,296x = 104,850,243,064.51
  5. Step 5: Solve for x
    x = 104,850,243,064.51/373,296
  6. Step 6: Final answer
    x = 280,876.95

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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.