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Finding the Fourth Proportional to 289,911.97, 400,077.75 and 162,590.29

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Solution

The fourth proportional to 289,911.97, 400,077.75 and 162,590.29 is: 224,374.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,911.97 : 400,077.75 = 162,590.29 : x
  2. Step 2: Convert to fraction form
    289,911.97/400,077.75 = 162,590.29/x
  3. Step 3: Cross multiply
    289,911.97x = 400,077.75 × 162,590.29
  4. Step 4: Simplify right side
    289,911.97x = 65,048,757,395.05
  5. Step 5: Solve for x
    x = 65,048,757,395.05/289,911.97
  6. Step 6: Final answer
    x = 224,374.17

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1.5x scale

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.