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Finding the Fourth Proportional to 253,447.45, 349,718.52 and 145,996.50

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Solution

The fourth proportional to 253,447.45, 349,718.52 and 145,996.50 is: 201,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,447.45 : 349,718.52 = 145,996.50 : x
  2. Step 2: Convert to fraction form
    253,447.45/349,718.52 = 145,996.50/x
  3. Step 3: Cross multiply
    253,447.45x = 349,718.52 × 145,996.50
  4. Step 4: Simplify right side
    253,447.45x = 51,057,679,905.18
  5. Step 5: Solve for x
    x = 51,057,679,905.18/253,447.45
  6. Step 6: Final answer
    x = 201,452.73

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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.