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Finding the Fourth Proportional to 248,639.59, 343,122.67 and 135,462.34

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Solution

The fourth proportional to 248,639.59, 343,122.67 and 135,462.34 is: 186,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,639.59 : 343,122.67 = 135,462.34 : x
  2. Step 2: Convert to fraction form
    248,639.59/343,122.67 = 135,462.34/x
  3. Step 3: Cross multiply
    248,639.59x = 343,122.67 × 135,462.34
  4. Step 4: Simplify right side
    248,639.59x = 46,480,197,392.32
  5. Step 5: Solve for x
    x = 46,480,197,392.32/248,639.59
  6. Step 6: Final answer
    x = 186,938.04

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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.