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Finding the Fourth Proportional to 290,285.36, 400,590.28 and 162,957.68

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Solution

The fourth proportional to 290,285.36, 400,590.28 and 162,957.68 is: 224,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,285.36 : 400,590.28 = 162,957.68 : x
  2. Step 2: Convert to fraction form
    290,285.36/400,590.28 = 162,957.68/x
  3. Step 3: Cross multiply
    290,285.36x = 400,590.28 × 162,957.68
  4. Step 4: Simplify right side
    290,285.36x = 65,279,262,659.35
  5. Step 5: Solve for x
    x = 65,279,262,659.35/290,285.36
  6. Step 6: Final answer
    x = 224,879.62

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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.