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Finding the Fourth Proportional to 243,529.44, 365,339.52 and 85,858.08

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Solution

The fourth proportional to 243,529.44, 365,339.52 and 85,858.08 is: 128,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,529.44 : 365,339.52 = 85,858.08 : x
  2. Step 2: Convert to fraction form
    243,529.44/365,339.52 = 85,858.08/x
  3. Step 3: Cross multiply
    243,529.44x = 365,339.52 × 85,858.08
  4. Step 4: Simplify right side
    243,529.44x = 31,367,349,735.32
  5. Step 5: Solve for x
    x = 31,367,349,735.32/243,529.44
  6. Step 6: Final answer
    x = 128,803.11

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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.