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Finding the Fourth Proportional to 328,838.58, 493,219.26 and 92,200.32

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Solution

The fourth proportional to 328,838.58, 493,219.26 and 92,200.32 is: 138,289.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,838.58 : 493,219.26 = 92,200.32 : x
  2. Step 2: Convert to fraction form
    328,838.58/493,219.26 = 92,200.32/x
  3. Step 3: Cross multiply
    328,838.58x = 493,219.26 × 92,200.32
  4. Step 4: Simplify right side
    328,838.58x = 45,474,973,602.16
  5. Step 5: Solve for x
    x = 45,474,973,602.16/328,838.58
  6. Step 6: Final answer
    x = 138,289.65

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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.