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Finding the Fourth Proportional to 328,735.55, 493,259.51 and 227,689.11

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Solution

The fourth proportional to 328,735.55, 493,259.51 and 227,689.11 is: 341,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,735.55 : 493,259.51 = 227,689.11 : x
  2. Step 2: Convert to fraction form
    328,735.55/493,259.51 = 227,689.11/x
  3. Step 3: Cross multiply
    328,735.55x = 493,259.51 × 227,689.11
  4. Step 4: Simplify right side
    328,735.55x = 112,309,818,830.94
  5. Step 5: Solve for x
    x = 112,309,818,830.94/328,735.55
  6. Step 6: Final answer
    x = 341,641.84

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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.