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Finding the Fourth Proportional to 243,612.54, 336,175.29 and 141,633.68

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Solution

The fourth proportional to 243,612.54, 336,175.29 and 141,633.68 is: 195,448.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,612.54 : 336,175.29 = 141,633.68 : x
  2. Step 2: Convert to fraction form
    243,612.54/336,175.29 = 141,633.68/x
  3. Step 3: Cross multiply
    243,612.54x = 336,175.29 × 141,633.68
  4. Step 4: Simplify right side
    243,612.54x = 47,613,741,766.89
  5. Step 5: Solve for x
    x = 47,613,741,766.89/243,612.54
  6. Step 6: Final answer
    x = 195,448.65

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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.