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Finding the Fourth Proportional to 953.50, 1,430.25 and 304.29

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Solution

The fourth proportional to 953.50, 1,430.25 and 304.29 is: 456.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.50 : 1,430.25 = 304.29 : x
  2. Step 2: Convert to fraction form
    953.50/1,430.25 = 304.29/x
  3. Step 3: Cross multiply
    953.50x = 1,430.25 × 304.29
  4. Step 4: Simplify right side
    953.50x = 435,203.62
  5. Step 5: Solve for x
    x = 435,203.62/953.50
  6. Step 6: Final answer
    x = 456.43

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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.