Home / 353,915.56-531,091.50-143,555.32

Finding the Fourth Proportional to 353,915.56, 531,091.50 and 143,555.32

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Solution

The fourth proportional to 353,915.56, 531,091.50 and 143,555.32 is: 215,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,915.56 : 531,091.50 = 143,555.32 : x
  2. Step 2: Convert to fraction form
    353,915.56/531,091.50 = 143,555.32/x
  3. Step 3: Cross multiply
    353,915.56x = 531,091.50 × 143,555.32
  4. Step 4: Simplify right side
    353,915.56x = 76,241,010,231.78
  5. Step 5: Solve for x
    x = 76,241,010,231.78/353,915.56
  6. Step 6: Final answer
    x = 215,421.47

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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.