Home / 420,467.63-580,261.32-239,196.11

Finding the Fourth Proportional to 420,467.63, 580,261.32 and 239,196.11

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Solution

The fourth proportional to 420,467.63, 580,261.32 and 239,196.11 is: 330,099.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,467.63 : 580,261.32 = 239,196.11 : x
  2. Step 2: Convert to fraction form
    420,467.63/580,261.32 = 239,196.11/x
  3. Step 3: Cross multiply
    420,467.63x = 580,261.32 × 239,196.11
  4. Step 4: Simplify right side
    420,467.63x = 138,796,247,626.16
  5. Step 5: Solve for x
    x = 138,796,247,626.16/420,467.63
  6. Step 6: Final answer
    x = 330,099.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.