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Finding the Fourth Proportional to 1,030.60, 1,546 and 300.16

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Solution

The fourth proportional to 1,030.60, 1,546 and 300.16 is: 450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.60 : 1,546 = 300.16 : x
  2. Step 2: Convert to fraction form
    1,030.60/1,546 = 300.16/x
  3. Step 3: Cross multiply
    1,030.60x = 1,546 × 300.16
  4. Step 4: Simplify right side
    1,030.60x = 464,047.36
  5. Step 5: Solve for x
    x = 464,047.36/1,030.60
  6. Step 6: Final answer
    x = 450.27

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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.