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Finding the Fourth Proportional to 565.86, 848.72 and 219.18

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Solution

The fourth proportional to 565.86, 848.72 and 219.18 is: 328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.86 : 848.72 = 219.18 : x
  2. Step 2: Convert to fraction form
    565.86/848.72 = 219.18/x
  3. Step 3: Cross multiply
    565.86x = 848.72 × 219.18
  4. Step 4: Simplify right side
    565.86x = 186,022.45
  5. Step 5: Solve for x
    x = 186,022.45/565.86
  6. Step 6: Final answer
    x = 328.74

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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.