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Finding the Fourth Proportional to 230,653.89, 318,286.59 and 133,860.58

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Solution

The fourth proportional to 230,653.89, 318,286.59 and 133,860.58 is: 184,718.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,653.89 : 318,286.59 = 133,860.58 : x
  2. Step 2: Convert to fraction form
    230,653.89/318,286.59 = 133,860.58/x
  3. Step 3: Cross multiply
    230,653.89x = 318,286.59 × 133,860.58
  4. Step 4: Simplify right side
    230,653.89x = 42,606,027,543.62
  5. Step 5: Solve for x
    x = 42,606,027,543.62/230,653.89
  6. Step 6: Final answer
    x = 184,718.44

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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.