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Finding the Fourth Proportional to 378,004.60, 567,881.70 and 259,906.60

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Solution

The fourth proportional to 378,004.60, 567,881.70 and 259,906.60 is: 390,461.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,004.60 : 567,881.70 = 259,906.60 : x
  2. Step 2: Convert to fraction form
    378,004.60/567,881.70 = 259,906.60/x
  3. Step 3: Cross multiply
    378,004.60x = 567,881.70 × 259,906.60
  4. Step 4: Simplify right side
    378,004.60x = 147,596,201,849.22
  5. Step 5: Solve for x
    x = 147,596,201,849.22/378,004.60
  6. Step 6: Final answer
    x = 390,461.39

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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.