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Finding the Fourth Proportional to 339,754.76, 509,632.23 and 99,868.67

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Solution

The fourth proportional to 339,754.76, 509,632.23 and 99,868.67 is: 149,803.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,754.76 : 509,632.23 = 99,868.67 : x
  2. Step 2: Convert to fraction form
    339,754.76/509,632.23 = 99,868.67/x
  3. Step 3: Cross multiply
    339,754.76x = 509,632.23 × 99,868.67
  4. Step 4: Simplify right side
    339,754.76x = 50,896,294,647.82
  5. Step 5: Solve for x
    x = 50,896,294,647.82/339,754.76
  6. Step 6: Final answer
    x = 149,803.04

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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.