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Finding the Fourth Proportional to 415,027.10, 621,107.05 and 248,934.30

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Solution

The fourth proportional to 415,027.10, 621,107.05 and 248,934.30 is: 372,541.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,027.10 : 621,107.05 = 248,934.30 : x
  2. Step 2: Convert to fraction form
    415,027.10/621,107.05 = 248,934.30/x
  3. Step 3: Cross multiply
    415,027.10x = 621,107.05 × 248,934.30
  4. Step 4: Simplify right side
    415,027.10x = 154,614,848,716.82
  5. Step 5: Solve for x
    x = 154,614,848,716.82/415,027.10
  6. Step 6: Final answer
    x = 372,541.57

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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.