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Finding the Fourth Proportional to 473.34, 709.53 and 328.77

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Solution

The fourth proportional to 473.34, 709.53 and 328.77 is: 492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.34 : 709.53 = 328.77 : x
  2. Step 2: Convert to fraction form
    473.34/709.53 = 328.77/x
  3. Step 3: Cross multiply
    473.34x = 709.53 × 328.77
  4. Step 4: Simplify right side
    473.34x = 233,272.18
  5. Step 5: Solve for x
    x = 233,272.18/473.34
  6. Step 6: Final answer
    x = 492.82

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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.