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Finding the Fourth Proportional to 290,403.83, 400,713.99 and 163,054.82

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Solution

The fourth proportional to 290,403.83, 400,713.99 and 163,054.82 is: 224,991.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,403.83 : 400,713.99 = 163,054.82 : x
  2. Step 2: Convert to fraction form
    290,403.83/400,713.99 = 163,054.82/x
  3. Step 3: Cross multiply
    290,403.83x = 400,713.99 × 163,054.82
  4. Step 4: Simplify right side
    290,403.83x = 65,338,347,901.26
  5. Step 5: Solve for x
    x = 65,338,347,901.26/290,403.83
  6. Step 6: Final answer
    x = 224,991.34

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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.