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Finding the Fourth Proportional to 247,907.64, 342,115.19 and 134,730.39

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Solution

The fourth proportional to 247,907.64, 342,115.19 and 134,730.39 is: 185,929.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,907.64 : 342,115.19 = 134,730.39 : x
  2. Step 2: Convert to fraction form
    247,907.64/342,115.19 = 134,730.39/x
  3. Step 3: Cross multiply
    247,907.64x = 342,115.19 × 134,730.39
  4. Step 4: Simplify right side
    247,907.64x = 46,093,312,299.97
  5. Step 5: Solve for x
    x = 46,093,312,299.97/247,907.64
  6. Step 6: Final answer
    x = 185,929.37

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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.