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Finding the Fourth Proportional to 291,282.40, 436,923.60 and 171,216.10

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Solution

The fourth proportional to 291,282.40, 436,923.60 and 171,216.10 is: 256,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,282.40 : 436,923.60 = 171,216.10 : x
  2. Step 2: Convert to fraction form
    291,282.40/436,923.60 = 171,216.10/x
  3. Step 3: Cross multiply
    291,282.40x = 436,923.60 × 171,216.10
  4. Step 4: Simplify right side
    291,282.40x = 74,808,354,789.96
  5. Step 5: Solve for x
    x = 74,808,354,789.96/291,282.40
  6. Step 6: Final answer
    x = 256,824.15

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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.