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Finding the Fourth Proportional to 346.35, 477.30 and 247.93

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Solution

The fourth proportional to 346.35, 477.30 and 247.93 is: 341.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.35 : 477.30 = 247.93 : x
  2. Step 2: Convert to fraction form
    346.35/477.30 = 247.93/x
  3. Step 3: Cross multiply
    346.35x = 477.30 × 247.93
  4. Step 4: Simplify right side
    346.35x = 118,338.18
  5. Step 5: Solve for x
    x = 118,338.18/346.35
  6. Step 6: Final answer
    x = 341.67

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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.