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Finding the Fourth Proportional to 293,468.28, 440,144.10 and 143,644.20

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Solution

The fourth proportional to 293,468.28, 440,144.10 and 143,644.20 is: 215,437.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,468.28 : 440,144.10 = 143,644.20 : x
  2. Step 2: Convert to fraction form
    293,468.28/440,144.10 = 143,644.20/x
  3. Step 3: Cross multiply
    293,468.28x = 440,144.10 × 143,644.20
  4. Step 4: Simplify right side
    293,468.28x = 63,224,147,129.22
  5. Step 5: Solve for x
    x = 63,224,147,129.22/293,468.28
  6. Step 6: Final answer
    x = 215,437.75

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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.