Home / 331,945.20-496,605.60-288,059.40

Finding the Fourth Proportional to 331,945.20, 496,605.60 and 288,059.40

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Solution

The fourth proportional to 331,945.20, 496,605.60 and 288,059.40 is: 430,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,945.20 : 496,605.60 = 288,059.40 : x
  2. Step 2: Convert to fraction form
    331,945.20/496,605.60 = 288,059.40/x
  3. Step 3: Cross multiply
    331,945.20x = 496,605.60 × 288,059.40
  4. Step 4: Simplify right side
    331,945.20x = 143,051,911,172.64
  5. Step 5: Solve for x
    x = 143,051,911,172.64/331,945.20
  6. Step 6: Final answer
    x = 430,950.38

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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.