Home / 320,533.32-442,427.94-211,717.20

Finding the Fourth Proportional to 320,533.32, 442,427.94 and 211,717.20

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Solution

The fourth proportional to 320,533.32, 442,427.94 and 211,717.20 is: 292,230.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,533.32 : 442,427.94 = 211,717.20 : x
  2. Step 2: Convert to fraction form
    320,533.32/442,427.94 = 211,717.20/x
  3. Step 3: Cross multiply
    320,533.32x = 442,427.94 × 211,717.20
  4. Step 4: Simplify right side
    320,533.32x = 93,669,604,658.57
  5. Step 5: Solve for x
    x = 93,669,604,658.57/320,533.32
  6. Step 6: Final answer
    x = 292,230.48

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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.