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Finding the Fourth Proportional to 247,907.16, 342,113.94 and 134,729.88

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Solution

The fourth proportional to 247,907.16, 342,113.94 and 134,729.88 is: 185,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,907.16 : 342,113.94 = 134,729.88 : x
  2. Step 2: Convert to fraction form
    247,907.16/342,113.94 = 134,729.88/x
  3. Step 3: Cross multiply
    247,907.16x = 342,113.94 × 134,729.88
  4. Step 4: Simplify right side
    247,907.16x = 46,092,970,082.53
  5. Step 5: Solve for x
    x = 46,092,970,082.53/247,907.16
  6. Step 6: Final answer
    x = 185,928.35

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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.