Home / 291,930.60-438,090.30-134,077.80

Finding the Fourth Proportional to 291,930.60, 438,090.30 and 134,077.80

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Solution

The fourth proportional to 291,930.60, 438,090.30 and 134,077.80 is: 201,205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,930.60 : 438,090.30 = 134,077.80 : x
  2. Step 2: Convert to fraction form
    291,930.60/438,090.30 = 134,077.80/x
  3. Step 3: Cross multiply
    291,930.60x = 438,090.30 × 134,077.80
  4. Step 4: Simplify right side
    291,930.60x = 58,738,183,625.34
  5. Step 5: Solve for x
    x = 58,738,183,625.34/291,930.60
  6. Step 6: Final answer
    x = 201,205.98

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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.