Home / 291,352.60-436,899.30-133,629.40

Finding the Fourth Proportional to 291,352.60, 436,899.30 and 133,629.40

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Solution

The fourth proportional to 291,352.60, 436,899.30 and 133,629.40 is: 200,384.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,352.60 : 436,899.30 = 133,629.40 : x
  2. Step 2: Convert to fraction form
    291,352.60/436,899.30 = 133,629.40/x
  3. Step 3: Cross multiply
    291,352.60x = 436,899.30 × 133,629.40
  4. Step 4: Simplify right side
    291,352.60x = 58,382,591,319.42
  5. Step 5: Solve for x
    x = 58,382,591,319.42/291,352.60
  6. Step 6: Final answer
    x = 200,384.66

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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.