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Finding the Fourth Proportional to 328,893.84, 493,491.42 and 178,909.38

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Solution

The fourth proportional to 328,893.84, 493,491.42 and 178,909.38 is: 268,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,893.84 : 493,491.42 = 178,909.38 : x
  2. Step 2: Convert to fraction form
    328,893.84/493,491.42 = 178,909.38/x
  3. Step 3: Cross multiply
    328,893.84x = 493,491.42 × 178,909.38
  4. Step 4: Simplify right side
    328,893.84x = 88,290,243,987.52
  5. Step 5: Solve for x
    x = 88,290,243,987.52/328,893.84
  6. Step 6: Final answer
    x = 268,446.02

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1.5x scale

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.