Home / 305,701.26-458,404.35-128,160.60

Finding the Fourth Proportional to 305,701.26, 458,404.35 and 128,160.60

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Solution

The fourth proportional to 305,701.26, 458,404.35 and 128,160.60 is: 192,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,701.26 : 458,404.35 = 128,160.60 : x
  2. Step 2: Convert to fraction form
    305,701.26/458,404.35 = 128,160.60/x
  3. Step 3: Cross multiply
    305,701.26x = 458,404.35 × 128,160.60
  4. Step 4: Simplify right side
    305,701.26x = 58,749,376,538.61
  5. Step 5: Solve for x
    x = 58,749,376,538.61/305,701.26
  6. Step 6: Final answer
    x = 192,179.05

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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.