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Finding the Fourth Proportional to 247,745.40, 342,030.51 and 163,108.50

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Solution

The fourth proportional to 247,745.40, 342,030.51 and 163,108.50 is: 225,183.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,745.40 : 342,030.51 = 163,108.50 : x
  2. Step 2: Convert to fraction form
    247,745.40/342,030.51 = 163,108.50/x
  3. Step 3: Cross multiply
    247,745.40x = 342,030.51 × 163,108.50
  4. Step 4: Simplify right side
    247,745.40x = 55,788,083,440.34
  5. Step 5: Solve for x
    x = 55,788,083,440.34/247,745.40
  6. Step 6: Final answer
    x = 225,183.13

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Why These Related Problems?

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