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Finding the Fourth Proportional to 378,270.72, 567,023.28 and 245,235.48

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Solution

The fourth proportional to 378,270.72, 567,023.28 and 245,235.48 is: 367,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,270.72 : 567,023.28 = 245,235.48 : x
  2. Step 2: Convert to fraction form
    378,270.72/567,023.28 = 245,235.48/x
  3. Step 3: Cross multiply
    378,270.72x = 567,023.28 × 245,235.48
  4. Step 4: Simplify right side
    378,270.72x = 139,054,226,241.97
  5. Step 5: Solve for x
    x = 139,054,226,241.97/378,270.72
  6. Step 6: Final answer
    x = 367,605.05

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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.