Home / 289,941.86-400,139.70-162,625.64

Finding the Fourth Proportional to 289,941.86, 400,139.70 and 162,625.64

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Solution

The fourth proportional to 289,941.86, 400,139.70 and 162,625.64 is: 224,434.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,941.86 : 400,139.70 = 162,625.64 : x
  2. Step 2: Convert to fraction form
    289,941.86/400,139.70 = 162,625.64/x
  3. Step 3: Cross multiply
    289,941.86x = 400,139.70 × 162,625.64
  4. Step 4: Simplify right side
    289,941.86x = 65,072,974,801.91
  5. Step 5: Solve for x
    x = 65,072,974,801.91/289,941.86
  6. Step 6: Final answer
    x = 224,434.56

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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.