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Finding the Fourth Proportional to 253,351.28, 349,576.93 and 156,639.41

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Solution

The fourth proportional to 253,351.28, 349,576.93 and 156,639.41 is: 216,132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,351.28 : 349,576.93 = 156,639.41 : x
  2. Step 2: Convert to fraction form
    253,351.28/349,576.93 = 156,639.41/x
  3. Step 3: Cross multiply
    253,351.28x = 349,576.93 × 156,639.41
  4. Step 4: Simplify right side
    253,351.28x = 54,757,524,064.81
  5. Step 5: Solve for x
    x = 54,757,524,064.81/253,351.28
  6. Step 6: Final answer
    x = 216,132.81

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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.