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Finding the Fourth Proportional to 239,795.76, 359,693.40 and 71,315.40

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Solution

The fourth proportional to 239,795.76, 359,693.40 and 71,315.40 is: 106,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,795.76 : 359,693.40 = 71,315.40 : x
  2. Step 2: Convert to fraction form
    239,795.76/359,693.40 = 71,315.40/x
  3. Step 3: Cross multiply
    239,795.76x = 359,693.40 × 71,315.40
  4. Step 4: Simplify right side
    239,795.76x = 25,651,678,698.36
  5. Step 5: Solve for x
    x = 25,651,678,698.36/239,795.76
  6. Step 6: Final answer
    x = 106,973.03

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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.