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Finding the Fourth Proportional to 555.94, 834.15 and 312.10

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Solution

The fourth proportional to 555.94, 834.15 and 312.10 is: 468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.94 : 834.15 = 312.10 : x
  2. Step 2: Convert to fraction form
    555.94/834.15 = 312.10/x
  3. Step 3: Cross multiply
    555.94x = 834.15 × 312.10
  4. Step 4: Simplify right side
    555.94x = 260,338.22
  5. Step 5: Solve for x
    x = 260,338.22/555.94
  6. Step 6: Final answer
    x = 468.28

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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.