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Finding the Fourth Proportional to 248,425.44, 342,826.88 and 135,248.16

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Solution

The fourth proportional to 248,425.44, 342,826.88 and 135,248.16 is: 186,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,425.44 : 342,826.88 = 135,248.16 : x
  2. Step 2: Convert to fraction form
    248,425.44/342,826.88 = 135,248.16/x
  3. Step 3: Cross multiply
    248,425.44x = 342,826.88 × 135,248.16
  4. Step 4: Simplify right side
    248,425.44x = 46,366,704,718.54
  5. Step 5: Solve for x
    x = 46,366,704,718.54/248,425.44
  6. Step 6: Final answer
    x = 186,642.34

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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.