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Finding the Fourth Proportional to 253,628.28, 349,998.42 and 144,738.63

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Solution

The fourth proportional to 253,628.28, 349,998.42 and 144,738.63 is: 199,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,628.28 : 349,998.42 = 144,738.63 : x
  2. Step 2: Convert to fraction form
    253,628.28/349,998.42 = 144,738.63/x
  3. Step 3: Cross multiply
    253,628.28x = 349,998.42 × 144,738.63
  4. Step 4: Simplify right side
    253,628.28x = 50,658,291,812.96
  5. Step 5: Solve for x
    x = 50,658,291,812.96/253,628.28
  6. Step 6: Final answer
    x = 199,734.40

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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.