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Finding the Fourth Proportional to 331,307.96, 499,174.90 and 299,758.46

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Solution

The fourth proportional to 331,307.96, 499,174.90 and 299,758.46 is: 451,639.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,307.96 : 499,174.90 = 299,758.46 : x
  2. Step 2: Convert to fraction form
    331,307.96/499,174.90 = 299,758.46/x
  3. Step 3: Cross multiply
    331,307.96x = 499,174.90 × 299,758.46
  4. Step 4: Simplify right side
    331,307.96x = 149,631,899,294.65
  5. Step 5: Solve for x
    x = 149,631,899,294.65/331,307.96
  6. Step 6: Final answer
    x = 451,639.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.