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Finding the Fourth Proportional to 349,516.80, 523,238.40 and 231,321.60

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Solution

The fourth proportional to 349,516.80, 523,238.40 and 231,321.60 is: 346,296.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,516.80 : 523,238.40 = 231,321.60 : x
  2. Step 2: Convert to fraction form
    349,516.80/523,238.40 = 231,321.60/x
  3. Step 3: Cross multiply
    349,516.80x = 523,238.40 × 231,321.60
  4. Step 4: Simplify right side
    349,516.80x = 121,036,343,869.44
  5. Step 5: Solve for x
    x = 121,036,343,869.44/349,516.80
  6. Step 6: Final answer
    x = 346,296.21

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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.