Home / 328,234.50-492,351.90-103,617.69

Finding the Fourth Proportional to 328,234.50, 492,351.90 and 103,617.69

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Solution

The fourth proportional to 328,234.50, 492,351.90 and 103,617.69 is: 155,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,234.50 : 492,351.90 = 103,617.69 : x
  2. Step 2: Convert to fraction form
    328,234.50/492,351.90 = 103,617.69/x
  3. Step 3: Cross multiply
    328,234.50x = 492,351.90 × 103,617.69
  4. Step 4: Simplify right side
    328,234.50x = 51,016,366,545.11
  5. Step 5: Solve for x
    x = 51,016,366,545.11/328,234.50
  6. Step 6: Final answer
    x = 155,426.58

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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.