Home / 231,421.30-347,063.91-98,300.50

Finding the Fourth Proportional to 231,421.30, 347,063.91 and 98,300.50

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Solution

The fourth proportional to 231,421.30, 347,063.91 and 98,300.50 is: 147,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,421.30 : 347,063.91 = 98,300.50 : x
  2. Step 2: Convert to fraction form
    231,421.30/347,063.91 = 98,300.50/x
  3. Step 3: Cross multiply
    231,421.30x = 347,063.91 × 98,300.50
  4. Step 4: Simplify right side
    231,421.30x = 34,116,555,884.96
  5. Step 5: Solve for x
    x = 34,116,555,884.96/231,421.30
  6. Step 6: Final answer
    x = 147,421.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.