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Finding the Fourth Proportional to 652.32, 978.32 and 190

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Solution

The fourth proportional to 652.32, 978.32 and 190 is: 284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.32 : 978.32 = 190 : x
  2. Step 2: Convert to fraction form
    652.32/978.32 = 190/x
  3. Step 3: Cross multiply
    652.32x = 978.32 × 190
  4. Step 4: Simplify right side
    652.32x = 185,880.80
  5. Step 5: Solve for x
    x = 185,880.80/652.32
  6. Step 6: Final answer
    x = 284.95

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