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Finding the Fourth Proportional to 253,446.45, 349,717.14 and 145,995.50

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Solution

The fourth proportional to 253,446.45, 349,717.14 and 145,995.50 is: 201,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,446.45 : 349,717.14 = 145,995.50 : x
  2. Step 2: Convert to fraction form
    253,446.45/349,717.14 = 145,995.50/x
  3. Step 3: Cross multiply
    253,446.45x = 349,717.14 × 145,995.50
  4. Step 4: Simplify right side
    253,446.45x = 51,057,128,712.87
  5. Step 5: Solve for x
    x = 51,057,128,712.87/253,446.45
  6. Step 6: Final answer
    x = 201,451.35

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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.