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Finding the Fourth Proportional to 239,509.58, 359,500.72 and 127,189.47

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Solution

The fourth proportional to 239,509.58, 359,500.72 and 127,189.47 is: 190,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,509.58 : 359,500.72 = 127,189.47 : x
  2. Step 2: Convert to fraction form
    239,509.58/359,500.72 = 127,189.47/x
  3. Step 3: Cross multiply
    239,509.58x = 359,500.72 × 127,189.47
  4. Step 4: Simplify right side
    239,509.58x = 45,724,706,131.11
  5. Step 5: Solve for x
    x = 45,724,706,131.11/239,509.58
  6. Step 6: Final answer
    x = 190,909.72

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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.