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Finding the Fourth Proportional to 378,925.39, 568,342 and 236,783.35

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Solution

The fourth proportional to 378,925.39, 568,342 and 236,783.35 is: 355,146.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,925.39 : 568,342 = 236,783.35 : x
  2. Step 2: Convert to fraction form
    378,925.39/568,342 = 236,783.35/x
  3. Step 3: Cross multiply
    378,925.39x = 568,342 × 236,783.35
  4. Step 4: Simplify right side
    378,925.39x = 134,573,922,705.70
  5. Step 5: Solve for x
    x = 134,573,922,705.70/378,925.39
  6. Step 6: Final answer
    x = 355,146.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.