Home / 311,985.89-430,540.52-168,745.93

Finding the Fourth Proportional to 311,985.89, 430,540.52 and 168,745.93

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Solution

The fourth proportional to 311,985.89, 430,540.52 and 168,745.93 is: 232,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,985.89 : 430,540.52 = 168,745.93 : x
  2. Step 2: Convert to fraction form
    311,985.89/430,540.52 = 168,745.93/x
  3. Step 3: Cross multiply
    311,985.89x = 430,540.52 × 168,745.93
  4. Step 4: Simplify right side
    311,985.89x = 72,651,960,951.79
  5. Step 5: Solve for x
    x = 72,651,960,951.79/311,985.89
  6. Step 6: Final answer
    x = 232,869.38

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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.