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Finding the Fourth Proportional to 290,549.36, 400,936.56 and 163,246.16

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Solution

The fourth proportional to 290,549.36, 400,936.56 and 163,246.16 is: 225,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,549.36 : 400,936.56 = 163,246.16 : x
  2. Step 2: Convert to fraction form
    290,549.36/400,936.56 = 163,246.16/x
  3. Step 3: Cross multiply
    290,549.36x = 400,936.56 × 163,246.16
  4. Step 4: Simplify right side
    290,549.36x = 65,451,353,823.61
  5. Step 5: Solve for x
    x = 65,451,353,823.61/290,549.36
  6. Step 6: Final answer
    x = 225,267.59

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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.