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Finding the Fourth Proportional to 290,959.44, 401,521.40 and 163,632.30

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Solution

The fourth proportional to 290,959.44, 401,521.40 and 163,632.30 is: 225,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,959.44 : 401,521.40 = 163,632.30 : x
  2. Step 2: Convert to fraction form
    290,959.44/401,521.40 = 163,632.30/x
  3. Step 3: Cross multiply
    290,959.44x = 401,521.40 × 163,632.30
  4. Step 4: Simplify right side
    290,959.44x = 65,701,870,181.22
  5. Step 5: Solve for x
    x = 65,701,870,181.22/290,959.44
  6. Step 6: Final answer
    x = 225,811.10

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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.