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Finding the Fourth Proportional to 346.65, 477.90 and 235.93

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Solution

The fourth proportional to 346.65, 477.90 and 235.93 is: 325.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.65 : 477.90 = 235.93 : x
  2. Step 2: Convert to fraction form
    346.65/477.90 = 235.93/x
  3. Step 3: Cross multiply
    346.65x = 477.90 × 235.93
  4. Step 4: Simplify right side
    346.65x = 112,750.95
  5. Step 5: Solve for x
    x = 112,750.95/346.65
  6. Step 6: Final answer
    x = 325.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.