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Finding the Fourth Proportional to 248,411.52, 342,815.04 and 135,236.16

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Solution

The fourth proportional to 248,411.52, 342,815.04 and 135,236.16 is: 186,629.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,411.52 : 342,815.04 = 135,236.16 : x
  2. Step 2: Convert to fraction form
    248,411.52/342,815.04 = 135,236.16/x
  3. Step 3: Cross multiply
    248,411.52x = 342,815.04 × 135,236.16
  4. Step 4: Simplify right side
    248,411.52x = 46,360,989,599.85
  5. Step 5: Solve for x
    x = 46,360,989,599.85/248,411.52
  6. Step 6: Final answer
    x = 186,629.79

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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.