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Finding the Fourth Proportional to 368,637.30, 552,524.31 and 140,783.67

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Solution

The fourth proportional to 368,637.30, 552,524.31 and 140,783.67 is: 211,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,637.30 : 552,524.31 = 140,783.67 : x
  2. Step 2: Convert to fraction form
    368,637.30/552,524.31 = 140,783.67/x
  3. Step 3: Cross multiply
    368,637.30x = 552,524.31 × 140,783.67
  4. Step 4: Simplify right side
    368,637.30x = 77,786,400,126.02
  5. Step 5: Solve for x
    x = 77,786,400,126.02/368,637.30
  6. Step 6: Final answer
    x = 211,010.66

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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.