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Finding the Fourth Proportional to 395,618, 593,501.40 and 158,979.44

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Solution

The fourth proportional to 395,618, 593,501.40 and 158,979.44 is: 238,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,618 : 593,501.40 = 158,979.44 : x
  2. Step 2: Convert to fraction form
    395,618/593,501.40 = 158,979.44/x
  3. Step 3: Cross multiply
    395,618x = 593,501.40 × 158,979.44
  4. Step 4: Simplify right side
    395,618x = 94,354,520,211.22
  5. Step 5: Solve for x
    x = 94,354,520,211.22/395,618
  6. Step 6: Final answer
    x = 238,499.06

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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.