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Finding the Fourth Proportional to 290,329.87, 400,655.22 and 163,008.19

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Solution

The fourth proportional to 290,329.87, 400,655.22 and 163,008.19 is: 224,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,329.87 : 400,655.22 = 163,008.19 : x
  2. Step 2: Convert to fraction form
    290,329.87/400,655.22 = 163,008.19/x
  3. Step 3: Cross multiply
    290,329.87x = 400,655.22 × 163,008.19
  4. Step 4: Simplify right side
    290,329.87x = 65,310,082,226.25
  5. Step 5: Solve for x
    x = 65,310,082,226.25/290,329.87
  6. Step 6: Final answer
    x = 224,951.30

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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.