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Finding the Fourth Proportional to 367,105.55, 507,121.80 and 283,299.71

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Solution

The fourth proportional to 367,105.55, 507,121.80 and 283,299.71 is: 391,351.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,105.55 : 507,121.80 = 283,299.71 : x
  2. Step 2: Convert to fraction form
    367,105.55/507,121.80 = 283,299.71/x
  3. Step 3: Cross multiply
    367,105.55x = 507,121.80 × 283,299.71
  4. Step 4: Simplify right side
    367,105.55x = 143,667,459,434.23
  5. Step 5: Solve for x
    x = 143,667,459,434.23/367,105.55
  6. Step 6: Final answer
    x = 391,351.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.