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Finding the Fourth Proportional to 253,033.74, 349,186.89 and 145,601.64

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Solution

The fourth proportional to 253,033.74, 349,186.89 and 145,601.64 is: 200,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,033.74 : 349,186.89 = 145,601.64 : x
  2. Step 2: Convert to fraction form
    253,033.74/349,186.89 = 145,601.64/x
  3. Step 3: Cross multiply
    253,033.74x = 349,186.89 × 145,601.64
  4. Step 4: Simplify right side
    253,033.74x = 50,842,183,850.50
  5. Step 5: Solve for x
    x = 50,842,183,850.50/253,033.74
  6. Step 6: Final answer
    x = 200,930.45

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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.