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Finding the Fourth Proportional to 290,328.87, 400,653.84 and 163,007.19

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Solution

The fourth proportional to 290,328.87, 400,653.84 and 163,007.19 is: 224,949.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,328.87 : 400,653.84 = 163,007.19 : x
  2. Step 2: Convert to fraction form
    290,328.87/400,653.84 = 163,007.19/x
  3. Step 3: Cross multiply
    290,328.87x = 400,653.84 × 163,007.19
  4. Step 4: Simplify right side
    290,328.87x = 65,309,457,964.31
  5. Step 5: Solve for x
    x = 65,309,457,964.31/290,328.87
  6. Step 6: Final answer
    x = 224,949.93

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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.