Home / 289,569.21-399,605.24-162,245.72

Finding the Fourth Proportional to 289,569.21, 399,605.24 and 162,245.72

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Solution

The fourth proportional to 289,569.21, 399,605.24 and 162,245.72 is: 223,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,569.21 : 399,605.24 = 162,245.72 : x
  2. Step 2: Convert to fraction form
    289,569.21/399,605.24 = 162,245.72/x
  3. Step 3: Cross multiply
    289,569.21x = 399,605.24 × 162,245.72
  4. Step 4: Simplify right side
    289,569.21x = 64,834,237,881.55
  5. Step 5: Solve for x
    x = 64,834,237,881.55/289,569.21
  6. Step 6: Final answer
    x = 223,898.94

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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.