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Finding the Fourth Proportional to 248,661.63, 343,153.04 and 135,484.38

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Solution

The fourth proportional to 248,661.63, 343,153.04 and 135,484.38 is: 186,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,661.63 : 343,153.04 = 135,484.38 : x
  2. Step 2: Convert to fraction form
    248,661.63/343,153.04 = 135,484.38/x
  3. Step 3: Cross multiply
    248,661.63x = 343,153.04 × 135,484.38
  4. Step 4: Simplify right side
    248,661.63x = 46,491,876,869.52
  5. Step 5: Solve for x
    x = 46,491,876,869.52/248,661.63
  6. Step 6: Final answer
    x = 186,968.44

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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.