Home / 328,823.20-493,234.80-239,156.20

Finding the Fourth Proportional to 328,823.20, 493,234.80 and 239,156.20

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Solution

The fourth proportional to 328,823.20, 493,234.80 and 239,156.20 is: 358,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,823.20 : 493,234.80 = 239,156.20 : x
  2. Step 2: Convert to fraction form
    328,823.20/493,234.80 = 239,156.20/x
  3. Step 3: Cross multiply
    328,823.20x = 493,234.80 × 239,156.20
  4. Step 4: Simplify right side
    328,823.20x = 117,960,160,475.76
  5. Step 5: Solve for x
    x = 117,960,160,475.76/328,823.20
  6. Step 6: Final answer
    x = 358,734.30

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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.