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Finding the Fourth Proportional to 348.40, 524.66 and 303.29

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Solution

The fourth proportional to 348.40, 524.66 and 303.29 is: 456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.40 : 524.66 = 303.29 : x
  2. Step 2: Convert to fraction form
    348.40/524.66 = 303.29/x
  3. Step 3: Cross multiply
    348.40x = 524.66 × 303.29
  4. Step 4: Simplify right side
    348.40x = 159,127.90
  5. Step 5: Solve for x
    x = 159,127.90/348.40
  6. Step 6: Final answer
    x = 456.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.