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Finding the Fourth Proportional to 345,812.37, 477,220.12 and 192,850.72

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Solution

The fourth proportional to 345,812.37, 477,220.12 and 192,850.72 is: 266,133.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,812.37 : 477,220.12 = 192,850.72 : x
  2. Step 2: Convert to fraction form
    345,812.37/477,220.12 = 192,850.72/x
  3. Step 3: Cross multiply
    345,812.37x = 477,220.12 × 192,850.72
  4. Step 4: Simplify right side
    345,812.37x = 92,032,243,740.49
  5. Step 5: Solve for x
    x = 92,032,243,740.49/345,812.37
  6. Step 6: Final answer
    x = 266,133.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.