Home / 356,789.79-492,628.22-229,686.81

Finding the Fourth Proportional to 356,789.79, 492,628.22 and 229,686.81

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Solution

The fourth proportional to 356,789.79, 492,628.22 and 229,686.81 is: 317,134.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,789.79 : 492,628.22 = 229,686.81 : x
  2. Step 2: Convert to fraction form
    356,789.79/492,628.22 = 229,686.81/x
  3. Step 3: Cross multiply
    356,789.79x = 492,628.22 × 229,686.81
  4. Step 4: Simplify right side
    356,789.79x = 113,150,203,219.34
  5. Step 5: Solve for x
    x = 113,150,203,219.34/356,789.79
  6. Step 6: Final answer
    x = 317,134.08

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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.