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Finding the Fourth Proportional to 253,447.95, 349,719.08 and 145,996.95

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Solution

The fourth proportional to 253,447.95, 349,719.08 and 145,996.95 is: 201,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,447.95 : 349,719.08 = 145,996.95 : x
  2. Step 2: Convert to fraction form
    253,447.95/349,719.08 = 145,996.95/x
  3. Step 3: Cross multiply
    253,447.95x = 349,719.08 × 145,996.95
  4. Step 4: Simplify right side
    253,447.95x = 51,057,918,306.82
  5. Step 5: Solve for x
    x = 51,057,918,306.82/253,447.95
  6. Step 6: Final answer
    x = 201,453.27

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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.