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Finding the Fourth Proportional to 230,986.55, 346,427.55 and 73,128.89

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Solution

The fourth proportional to 230,986.55, 346,427.55 and 73,128.89 is: 109,676.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,986.55 : 346,427.55 = 73,128.89 : x
  2. Step 2: Convert to fraction form
    230,986.55/346,427.55 = 73,128.89/x
  3. Step 3: Cross multiply
    230,986.55x = 346,427.55 × 73,128.89
  4. Step 4: Simplify right side
    230,986.55x = 25,333,863,062.99
  5. Step 5: Solve for x
    x = 25,333,863,062.99/230,986.55
  6. Step 6: Final answer
    x = 109,676.79

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1.5x scale

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.