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Finding the Fourth Proportional to 897, 1,345.32 and 348.99

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Solution

The fourth proportional to 897, 1,345.32 and 348.99 is: 523.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    897 : 1,345.32 = 348.99 : x
  2. Step 2: Convert to fraction form
    897/1,345.32 = 348.99/x
  3. Step 3: Cross multiply
    897x = 1,345.32 × 348.99
  4. Step 4: Simplify right side
    897x = 469,503.23
  5. Step 5: Solve for x
    x = 469,503.23/897
  6. Step 6: Final answer
    x = 523.41

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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.