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Finding the Fourth Proportional to 989.02, 1,483.26 and 295.50

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Solution

The fourth proportional to 989.02, 1,483.26 and 295.50 is: 443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    989.02 : 1,483.26 = 295.50 : x
  2. Step 2: Convert to fraction form
    989.02/1,483.26 = 295.50/x
  3. Step 3: Cross multiply
    989.02x = 1,483.26 × 295.50
  4. Step 4: Simplify right side
    989.02x = 438,303.33
  5. Step 5: Solve for x
    x = 438,303.33/989.02
  6. Step 6: Final answer
    x = 443.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.