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Finding the Fourth Proportional to 954.75, 1,431.67 and 370.02

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Solution

The fourth proportional to 954.75, 1,431.67 and 370.02 is: 554.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.75 : 1,431.67 = 370.02 : x
  2. Step 2: Convert to fraction form
    954.75/1,431.67 = 370.02/x
  3. Step 3: Cross multiply
    954.75x = 1,431.67 × 370.02
  4. Step 4: Simplify right side
    954.75x = 529,748.99
  5. Step 5: Solve for x
    x = 529,748.99/954.75
  6. Step 6: Final answer
    x = 554.86

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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.