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Finding the Fourth Proportional to 378,010.47, 567,126.45 and 111,777.90

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Solution

The fourth proportional to 378,010.47, 567,126.45 and 111,777.90 is: 167,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,010.47 : 567,126.45 = 111,777.90 : x
  2. Step 2: Convert to fraction form
    378,010.47/567,126.45 = 111,777.90/x
  3. Step 3: Cross multiply
    378,010.47x = 567,126.45 × 111,777.90
  4. Step 4: Simplify right side
    378,010.47x = 63,392,203,615.46
  5. Step 5: Solve for x
    x = 63,392,203,615.46/378,010.47
  6. Step 6: Final answer
    x = 167,699.60

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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.