Home / 291,558.80-437,187-133,651.28

Finding the Fourth Proportional to 291,558.80, 437,187 and 133,651.28

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Solution

The fourth proportional to 291,558.80, 437,187 and 133,651.28 is: 200,407.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,558.80 : 437,187 = 133,651.28 : x
  2. Step 2: Convert to fraction form
    291,558.80/437,187 = 133,651.28/x
  3. Step 3: Cross multiply
    291,558.80x = 437,187 × 133,651.28
  4. Step 4: Simplify right side
    291,558.80x = 58,430,602,149.36
  5. Step 5: Solve for x
    x = 58,430,602,149.36/291,558.80
  6. Step 6: Final answer
    x = 200,407.61

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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.