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Finding the Fourth Proportional to 375,330.12, 517,936.32 and 205,560.60

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Solution

The fourth proportional to 375,330.12, 517,936.32 and 205,560.60 is: 283,663.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,330.12 : 517,936.32 = 205,560.60 : x
  2. Step 2: Convert to fraction form
    375,330.12/517,936.32 = 205,560.60/x
  3. Step 3: Cross multiply
    375,330.12x = 517,936.32 × 205,560.60
  4. Step 4: Simplify right side
    375,330.12x = 106,467,300,700.99
  5. Step 5: Solve for x
    x = 106,467,300,700.99/375,330.12
  6. Step 6: Final answer
    x = 283,663.09

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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.