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Finding the Fourth Proportional to 247,751.40, 342,038.80 and 163,114.50

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Solution

The fourth proportional to 247,751.40, 342,038.80 and 163,114.50 is: 225,191.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,751.40 : 342,038.80 = 163,114.50 : x
  2. Step 2: Convert to fraction form
    247,751.40/342,038.80 = 163,114.50/x
  3. Step 3: Cross multiply
    247,751.40x = 342,038.80 × 163,114.50
  4. Step 4: Simplify right side
    247,751.40x = 55,791,487,842.60
  5. Step 5: Solve for x
    x = 55,791,487,842.60/247,751.40
  6. Step 6: Final answer
    x = 225,191.41

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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.