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Finding the Fourth Proportional to 495.52, 683.58 and 340

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Solution

The fourth proportional to 495.52, 683.58 and 340 is: 469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.52 : 683.58 = 340 : x
  2. Step 2: Convert to fraction form
    495.52/683.58 = 340/x
  3. Step 3: Cross multiply
    495.52x = 683.58 × 340
  4. Step 4: Simplify right side
    495.52x = 232,417.20
  5. Step 5: Solve for x
    x = 232,417.20/495.52
  6. Step 6: Final answer
    x = 469.04

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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.