Home / 291,228.08-401,828.28-163,857.20

Finding the Fourth Proportional to 291,228.08, 401,828.28 and 163,857.20

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Solution

The fourth proportional to 291,228.08, 401,828.28 and 163,857.20 is: 226,085.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,228.08 : 401,828.28 = 163,857.20 : x
  2. Step 2: Convert to fraction form
    291,228.08/401,828.28 = 163,857.20/x
  3. Step 3: Cross multiply
    291,228.08x = 401,828.28 × 163,857.20
  4. Step 4: Simplify right side
    291,228.08x = 65,842,456,841.62
  5. Step 5: Solve for x
    x = 65,842,456,841.62/291,228.08
  6. Step 6: Final answer
    x = 226,085.54

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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.