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Finding the Fourth Proportional to 290,607.40, 401,050.02 and 163,282.60

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Solution

The fourth proportional to 290,607.40, 401,050.02 and 163,282.60 is: 225,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,607.40 : 401,050.02 = 163,282.60 : x
  2. Step 2: Convert to fraction form
    290,607.40/401,050.02 = 163,282.60/x
  3. Step 3: Cross multiply
    290,607.40x = 401,050.02 × 163,282.60
  4. Step 4: Simplify right side
    290,607.40x = 65,484,489,995.65
  5. Step 5: Solve for x
    x = 65,484,489,995.65/290,607.40
  6. Step 6: Final answer
    x = 225,336.62

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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.