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Finding the Fourth Proportional to 290,043.52, 400,253.44 and 162,716.16

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Solution

The fourth proportional to 290,043.52, 400,253.44 and 162,716.16 is: 224,544.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,043.52 : 400,253.44 = 162,716.16 : x
  2. Step 2: Convert to fraction form
    290,043.52/400,253.44 = 162,716.16/x
  3. Step 3: Cross multiply
    290,043.52x = 400,253.44 × 162,716.16
  4. Step 4: Simplify right side
    290,043.52x = 65,127,702,783.59
  5. Step 5: Solve for x
    x = 65,127,702,783.59/290,043.52
  6. Step 6: Final answer
    x = 224,544.59

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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.