Home / 289,535.12-399,573.15-166,981.91

Finding the Fourth Proportional to 289,535.12, 399,573.15 and 166,981.91

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Solution

The fourth proportional to 289,535.12, 399,573.15 and 166,981.91 is: 230,443.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,535.12 : 399,573.15 = 166,981.91 : x
  2. Step 2: Convert to fraction form
    289,535.12/399,573.15 = 166,981.91/x
  3. Step 3: Cross multiply
    289,535.12x = 399,573.15 × 166,981.91
  4. Step 4: Simplify right side
    289,535.12x = 66,721,485,773.85
  5. Step 5: Solve for x
    x = 66,721,485,773.85/289,535.12
  6. Step 6: Final answer
    x = 230,443.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.