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Finding the Fourth Proportional to 253,448.98, 349,758.66 and 137,162.21

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Solution

The fourth proportional to 253,448.98, 349,758.66 and 137,162.21 is: 189,283.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,448.98 : 349,758.66 = 137,162.21 : x
  2. Step 2: Convert to fraction form
    253,448.98/349,758.66 = 137,162.21/x
  3. Step 3: Cross multiply
    253,448.98x = 349,758.66 × 137,162.21
  4. Step 4: Simplify right side
    253,448.98x = 47,973,670,772.24
  5. Step 5: Solve for x
    x = 47,973,670,772.24/253,448.98
  6. Step 6: Final answer
    x = 189,283.35

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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.