Home / 353,839.20-530,977.52-143,478.96

Finding the Fourth Proportional to 353,839.20, 530,977.52 and 143,478.96

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Solution

The fourth proportional to 353,839.20, 530,977.52 and 143,478.96 is: 215,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,839.20 : 530,977.52 = 143,478.96 : x
  2. Step 2: Convert to fraction form
    353,839.20/530,977.52 = 143,478.96/x
  3. Step 3: Cross multiply
    353,839.20x = 530,977.52 × 143,478.96
  4. Step 4: Simplify right side
    353,839.20x = 76,184,102,352.98
  5. Step 5: Solve for x
    x = 76,184,102,352.98/353,839.20
  6. Step 6: Final answer
    x = 215,307.13

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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.