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Finding the Fourth Proportional to 346.26, 521.99 and 322.77

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Solution

The fourth proportional to 346.26, 521.99 and 322.77 is: 486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.26 : 521.99 = 322.77 : x
  2. Step 2: Convert to fraction form
    346.26/521.99 = 322.77/x
  3. Step 3: Cross multiply
    346.26x = 521.99 × 322.77
  4. Step 4: Simplify right side
    346.26x = 168,482.71
  5. Step 5: Solve for x
    x = 168,482.71/346.26
  6. Step 6: Final answer
    x = 486.58

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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.