Home / 306,310.08-458,997.33-128,720.01

Finding the Fourth Proportional to 306,310.08, 458,997.33 and 128,720.01

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Solution

The fourth proportional to 306,310.08, 458,997.33 and 128,720.01 is: 192,883.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,310.08 : 458,997.33 = 128,720.01 : x
  2. Step 2: Convert to fraction form
    306,310.08/458,997.33 = 128,720.01/x
  3. Step 3: Cross multiply
    306,310.08x = 458,997.33 × 128,720.01
  4. Step 4: Simplify right side
    306,310.08x = 59,082,140,907.57
  5. Step 5: Solve for x
    x = 59,082,140,907.57/306,310.08
  6. Step 6: Final answer
    x = 192,883.44

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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.