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Finding the Fourth Proportional to 247,907.64, 342,115.20 and 134,730.44

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Solution

The fourth proportional to 247,907.64, 342,115.20 and 134,730.44 is: 185,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,907.64 : 342,115.20 = 134,730.44 : x
  2. Step 2: Convert to fraction form
    247,907.64/342,115.20 = 134,730.44/x
  3. Step 3: Cross multiply
    247,907.64x = 342,115.20 × 134,730.44
  4. Step 4: Simplify right side
    247,907.64x = 46,093,331,426.69
  5. Step 5: Solve for x
    x = 46,093,331,426.69/247,907.64
  6. Step 6: Final answer
    x = 185,929.45

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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.