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Finding the Fourth Proportional to 243,530.44, 365,341.02 and 85,859.08

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Solution

The fourth proportional to 243,530.44, 365,341.02 and 85,859.08 is: 128,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,530.44 : 365,341.02 = 85,859.08 : x
  2. Step 2: Convert to fraction form
    243,530.44/365,341.02 = 85,859.08/x
  3. Step 3: Cross multiply
    243,530.44x = 365,341.02 × 85,859.08
  4. Step 4: Simplify right side
    243,530.44x = 31,367,843,863.46
  5. Step 5: Solve for x
    x = 31,367,843,863.46/243,530.44
  6. Step 6: Final answer
    x = 128,804.61

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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.