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Finding the Fourth Proportional to 290,479.37, 400,852.85 and 161,417.44

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Solution

The fourth proportional to 290,479.37, 400,852.85 and 161,417.44 is: 222,751.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,479.37 : 400,852.85 = 161,417.44 : x
  2. Step 2: Convert to fraction form
    290,479.37/400,852.85 = 161,417.44/x
  3. Step 3: Cross multiply
    290,479.37x = 400,852.85 × 161,417.44
  4. Step 4: Simplify right side
    290,479.37x = 64,704,640,557.68
  5. Step 5: Solve for x
    x = 64,704,640,557.68/290,479.37
  6. Step 6: Final answer
    x = 222,751.25

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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.