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Finding the Fourth Proportional to 291,471.20, 404,064.58 and 275,506.16

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Solution

The fourth proportional to 291,471.20, 404,064.58 and 275,506.16 is: 381,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,471.20 : 404,064.58 = 275,506.16 : x
  2. Step 2: Convert to fraction form
    291,471.20/404,064.58 = 275,506.16/x
  3. Step 3: Cross multiply
    291,471.20x = 404,064.58 × 275,506.16
  4. Step 4: Simplify right side
    291,471.20x = 111,322,280,827.81
  5. Step 5: Solve for x
    x = 111,322,280,827.81/291,471.20
  6. Step 6: Final answer
    x = 381,932.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.