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Finding the Fourth Proportional to 248,659.34, 343,149.90 and 135,482.10

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Solution

The fourth proportional to 248,659.34, 343,149.90 and 135,482.10 is: 186,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,659.34 : 343,149.90 = 135,482.10 : x
  2. Step 2: Convert to fraction form
    248,659.34/343,149.90 = 135,482.10/x
  3. Step 3: Cross multiply
    248,659.34x = 343,149.90 × 135,482.10
  4. Step 4: Simplify right side
    248,659.34x = 46,490,669,066.79
  5. Step 5: Solve for x
    x = 46,490,669,066.79/248,659.34
  6. Step 6: Final answer
    x = 186,965.30

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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.