Home / 238,121.12-328,583.18-142,625.36

Finding the Fourth Proportional to 238,121.12, 328,583.18 and 142,625.36

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Solution

The fourth proportional to 238,121.12, 328,583.18 and 142,625.36 is: 196,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,121.12 : 328,583.18 = 142,625.36 : x
  2. Step 2: Convert to fraction form
    238,121.12/328,583.18 = 142,625.36/x
  3. Step 3: Cross multiply
    238,121.12x = 328,583.18 × 142,625.36
  4. Step 4: Simplify right side
    238,121.12x = 46,864,294,337.44
  5. Step 5: Solve for x
    x = 46,864,294,337.44/238,121.12
  6. Step 6: Final answer
    x = 196,808.64

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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.