Home / 306,255.33-458,915.22-128,665.26

Finding the Fourth Proportional to 306,255.33, 458,915.22 and 128,665.26

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Solution

The fourth proportional to 306,255.33, 458,915.22 and 128,665.26 is: 192,801.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,255.33 : 458,915.22 = 128,665.26 : x
  2. Step 2: Convert to fraction form
    306,255.33/458,915.22 = 128,665.26/x
  3. Step 3: Cross multiply
    306,255.33x = 458,915.22 × 128,665.26
  4. Step 4: Simplify right side
    306,255.33x = 59,046,446,099.26
  5. Step 5: Solve for x
    x = 59,046,446,099.26/306,255.33
  6. Step 6: Final answer
    x = 192,801.37

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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.