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Finding the Fourth Proportional to 549.86, 758.49 and 342.50

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Solution

The fourth proportional to 549.86, 758.49 and 342.50 is: 472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.86 : 758.49 = 342.50 : x
  2. Step 2: Convert to fraction form
    549.86/758.49 = 342.50/x
  3. Step 3: Cross multiply
    549.86x = 758.49 × 342.50
  4. Step 4: Simplify right side
    549.86x = 259,782.83
  5. Step 5: Solve for x
    x = 259,782.83/549.86
  6. Step 6: Final answer
    x = 472.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.