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Finding the Fourth Proportional to 768,174.12, 1,152,282.24 and 207,207

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Solution

The fourth proportional to 768,174.12, 1,152,282.24 and 207,207 is: 310,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,174.12 : 1,152,282.24 = 207,207 : x
  2. Step 2: Convert to fraction form
    768,174.12/1,152,282.24 = 207,207/x
  3. Step 3: Cross multiply
    768,174.12x = 1,152,282.24 × 207,207
  4. Step 4: Simplify right side
    768,174.12x = 238,760,946,103.68
  5. Step 5: Solve for x
    x = 238,760,946,103.68/768,174.12
  6. Step 6: Final answer
    x = 310,816.18

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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.