Home / 305,745.24-458,150.28-128,155.44

Finding the Fourth Proportional to 305,745.24, 458,150.28 and 128,155.44

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Solution

The fourth proportional to 305,745.24, 458,150.28 and 128,155.44 is: 192,037.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,745.24 : 458,150.28 = 128,155.44 : x
  2. Step 2: Convert to fraction form
    305,745.24/458,150.28 = 128,155.44/x
  3. Step 3: Cross multiply
    305,745.24x = 458,150.28 × 128,155.44
  4. Step 4: Simplify right side
    305,745.24x = 58,714,450,719.52
  5. Step 5: Solve for x
    x = 58,714,450,719.52/305,745.24
  6. Step 6: Final answer
    x = 192,037.17

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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.