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Finding the Fourth Proportional to 499,988.66, 750,076.37 and 200,492.67

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Solution

The fourth proportional to 499,988.66, 750,076.37 and 200,492.67 is: 300,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,988.66 : 750,076.37 = 200,492.67 : x
  2. Step 2: Convert to fraction form
    499,988.66/750,076.37 = 200,492.67/x
  3. Step 3: Cross multiply
    499,988.66x = 750,076.37 × 200,492.67
  4. Step 4: Simplify right side
    499,988.66x = 150,384,813,122.75
  5. Step 5: Solve for x
    x = 150,384,813,122.75/499,988.66
  6. Step 6: Final answer
    x = 300,776.45

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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.