Home / 353,431.40-530,251.64-203,779.04

Finding the Fourth Proportional to 353,431.40, 530,251.64 and 203,779.04

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Solution

The fourth proportional to 353,431.40, 530,251.64 and 203,779.04 is: 305,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,431.40 : 530,251.64 = 203,779.04 : x
  2. Step 2: Convert to fraction form
    353,431.40/530,251.64 = 203,779.04/x
  3. Step 3: Cross multiply
    353,431.40x = 530,251.64 × 203,779.04
  4. Step 4: Simplify right side
    353,431.40x = 108,054,170,157.63
  5. Step 5: Solve for x
    x = 108,054,170,157.63/353,431.40
  6. Step 6: Final answer
    x = 305,728.83

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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.