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Finding the Fourth Proportional to 328,197.66, 492,296.55 and 103,575.57

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Solution

The fourth proportional to 328,197.66, 492,296.55 and 103,575.57 is: 155,363.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,197.66 : 492,296.55 = 103,575.57 : x
  2. Step 2: Convert to fraction form
    328,197.66/492,296.55 = 103,575.57/x
  3. Step 3: Cross multiply
    328,197.66x = 492,296.55 × 103,575.57
  4. Step 4: Simplify right side
    328,197.66x = 50,989,895,775.28
  5. Step 5: Solve for x
    x = 50,989,895,775.28/328,197.66
  6. Step 6: Final answer
    x = 155,363.37

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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.