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Finding the Fourth Proportional to 328,687.58, 493,217.27 and 178,938.23

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Solution

The fourth proportional to 328,687.58, 493,217.27 and 178,938.23 is: 268,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,687.58 : 493,217.27 = 178,938.23 : x
  2. Step 2: Convert to fraction form
    328,687.58/493,217.27 = 178,938.23/x
  3. Step 3: Cross multiply
    328,687.58x = 493,217.27 × 178,938.23
  4. Step 4: Simplify right side
    328,687.58x = 88,255,421,938.45
  5. Step 5: Solve for x
    x = 88,255,421,938.45/328,687.58
  6. Step 6: Final answer
    x = 268,508.54

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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.