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Finding the Fourth Proportional to 469.58, 703.54 and 338.93

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Solution

The fourth proportional to 469.58, 703.54 and 338.93 is: 507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.58 : 703.54 = 338.93 : x
  2. Step 2: Convert to fraction form
    469.58/703.54 = 338.93/x
  3. Step 3: Cross multiply
    469.58x = 703.54 × 338.93
  4. Step 4: Simplify right side
    469.58x = 238,450.10
  5. Step 5: Solve for x
    x = 238,450.10/469.58
  6. Step 6: Final answer
    x = 507.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.