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Finding the Fourth Proportional to 956.33, 1,434.45 and 340.03

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Solution

The fourth proportional to 956.33, 1,434.45 and 340.03 is: 510.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.33 : 1,434.45 = 340.03 : x
  2. Step 2: Convert to fraction form
    956.33/1,434.45 = 340.03/x
  3. Step 3: Cross multiply
    956.33x = 1,434.45 × 340.03
  4. Step 4: Simplify right side
    956.33x = 487,756.03
  5. Step 5: Solve for x
    x = 487,756.03/956.33
  6. Step 6: Final answer
    x = 510.03

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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.