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Finding the Fourth Proportional to 311,524.73, 429,904.13 and 168,284.79

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Solution

The fourth proportional to 311,524.73, 429,904.13 and 168,284.79 is: 232,233.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,524.73 : 429,904.13 = 168,284.79 : x
  2. Step 2: Convert to fraction form
    311,524.73/429,904.13 = 168,284.79/x
  3. Step 3: Cross multiply
    311,524.73x = 429,904.13 × 168,284.79
  4. Step 4: Simplify right side
    311,524.73x = 72,346,326,815.66
  5. Step 5: Solve for x
    x = 72,346,326,815.66/311,524.73
  6. Step 6: Final answer
    x = 232,233.01

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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.