Home / 291,281.13-401,914.31-163,929.69

Finding the Fourth Proportional to 291,281.13, 401,914.31 and 163,929.69

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Solution

The fourth proportional to 291,281.13, 401,914.31 and 163,929.69 is: 226,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,281.13 : 401,914.31 = 163,929.69 : x
  2. Step 2: Convert to fraction form
    291,281.13/401,914.31 = 163,929.69/x
  3. Step 3: Cross multiply
    291,281.13x = 401,914.31 × 163,929.69
  4. Step 4: Simplify right side
    291,281.13x = 65,885,687,425.22
  5. Step 5: Solve for x
    x = 65,885,687,425.22/291,281.13
  6. Step 6: Final answer
    x = 226,192.78

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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.