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Finding the Fourth Proportional to 239,668.86, 359,632.86 and 90,011.64

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Solution

The fourth proportional to 239,668.86, 359,632.86 and 90,011.64 is: 135,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,668.86 : 359,632.86 = 90,011.64 : x
  2. Step 2: Convert to fraction form
    239,668.86/359,632.86 = 90,011.64/x
  3. Step 3: Cross multiply
    239,668.86x = 359,632.86 × 90,011.64
  4. Step 4: Simplify right side
    239,668.86x = 32,371,143,526.49
  5. Step 5: Solve for x
    x = 32,371,143,526.49/239,668.86
  6. Step 6: Final answer
    x = 135,066.12

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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.