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Finding the Fourth Proportional to 253,103.28, 349,271.46 and 145,676.76

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Solution

The fourth proportional to 253,103.28, 349,271.46 and 145,676.76 is: 201,027.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,103.28 : 349,271.46 = 145,676.76 : x
  2. Step 2: Convert to fraction form
    253,103.28/349,271.46 = 145,676.76/x
  3. Step 3: Cross multiply
    253,103.28x = 349,271.46 × 145,676.76
  4. Step 4: Simplify right side
    253,103.28x = 50,880,734,653.27
  5. Step 5: Solve for x
    x = 50,880,734,653.27/253,103.28
  6. Step 6: Final answer
    x = 201,027.56

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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.