Home / 228,623.66-315,654.69-142,713.44

Finding the Fourth Proportional to 228,623.66, 315,654.69 and 142,713.44

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Solution

The fourth proportional to 228,623.66, 315,654.69 and 142,713.44 is: 197,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,623.66 : 315,654.69 = 142,713.44 : x
  2. Step 2: Convert to fraction form
    228,623.66/315,654.69 = 142,713.44/x
  3. Step 3: Cross multiply
    228,623.66x = 315,654.69 × 142,713.44
  4. Step 4: Simplify right side
    228,623.66x = 45,048,165,083.76
  5. Step 5: Solve for x
    x = 45,048,165,083.76/228,623.66
  6. Step 6: Final answer
    x = 197,040.70

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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.