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Finding the Fourth Proportional to 239,754.47, 359,515.06 and 127,488.47

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Solution

The fourth proportional to 239,754.47, 359,515.06 and 127,488.47 is: 191,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,754.47 : 359,515.06 = 127,488.47 : x
  2. Step 2: Convert to fraction form
    239,754.47/359,515.06 = 127,488.47/x
  3. Step 3: Cross multiply
    239,754.47x = 359,515.06 × 127,488.47
  4. Step 4: Simplify right side
    239,754.47x = 45,834,022,825.06
  5. Step 5: Solve for x
    x = 45,834,022,825.06/239,754.47
  6. Step 6: Final answer
    x = 191,170.67

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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.