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Finding the Fourth Proportional to 247,912.84, 342,117.84 and 134,736.40

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Solution

The fourth proportional to 247,912.84, 342,117.84 and 134,736.40 is: 185,935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,912.84 : 342,117.84 = 134,736.40 : x
  2. Step 2: Convert to fraction form
    247,912.84/342,117.84 = 134,736.40/x
  3. Step 3: Cross multiply
    247,912.84x = 342,117.84 × 134,736.40
  4. Step 4: Simplify right side
    247,912.84x = 46,095,726,137.38
  5. Step 5: Solve for x
    x = 46,095,726,137.38/247,912.84
  6. Step 6: Final answer
    x = 185,935.21

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1.5x scale

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.