Home / 581,133.69-871,709.28-221,324.43

Finding the Fourth Proportional to 581,133.69, 871,709.28 and 221,324.43

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Solution

The fourth proportional to 581,133.69, 871,709.28 and 221,324.43 is: 331,989.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,133.69 : 871,709.28 = 221,324.43 : x
  2. Step 2: Convert to fraction form
    581,133.69/871,709.28 = 221,324.43/x
  3. Step 3: Cross multiply
    581,133.69x = 871,709.28 × 221,324.43
  4. Step 4: Simplify right side
    581,133.69x = 192,930,559,521.71
  5. Step 5: Solve for x
    x = 192,930,559,521.71/581,133.69
  6. Step 6: Final answer
    x = 331,989.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.