Home / 402,727.44-555,749.64-221,438.10

Finding the Fourth Proportional to 402,727.44, 555,749.64 and 221,438.10

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Solution

The fourth proportional to 402,727.44, 555,749.64 and 221,438.10 is: 305,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,727.44 : 555,749.64 = 221,438.10 : x
  2. Step 2: Convert to fraction form
    402,727.44/555,749.64 = 221,438.10/x
  3. Step 3: Cross multiply
    402,727.44x = 555,749.64 × 221,438.10
  4. Step 4: Simplify right side
    402,727.44x = 123,064,144,357.28
  5. Step 5: Solve for x
    x = 123,064,144,357.28/402,727.44
  6. Step 6: Final answer
    x = 305,576.76

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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.