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Finding the Fourth Proportional to 345.93, 521.48 and 323.01

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Solution

The fourth proportional to 345.93, 521.48 and 323.01 is: 486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.93 : 521.48 = 323.01 : x
  2. Step 2: Convert to fraction form
    345.93/521.48 = 323.01/x
  3. Step 3: Cross multiply
    345.93x = 521.48 × 323.01
  4. Step 4: Simplify right side
    345.93x = 168,442.45
  5. Step 5: Solve for x
    x = 168,442.45/345.93
  6. Step 6: Final answer
    x = 486.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.