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Finding the Fourth Proportional to 291,613.84, 437,420.78 and 69,997.84

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Solution

The fourth proportional to 291,613.84, 437,420.78 and 69,997.84 is: 104,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,613.84 : 437,420.78 = 69,997.84 : x
  2. Step 2: Convert to fraction form
    291,613.84/437,420.78 = 69,997.84/x
  3. Step 3: Cross multiply
    291,613.84x = 437,420.78 × 69,997.84
  4. Step 4: Simplify right side
    291,613.84x = 30,618,509,771.12
  5. Step 5: Solve for x
    x = 30,618,509,771.12/291,613.84
  6. Step 6: Final answer
    x = 104,996.76

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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.