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Finding the Fourth Proportional to 586.01, 878.49 and 312.30

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Solution

The fourth proportional to 586.01, 878.49 and 312.30 is: 468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.01 : 878.49 = 312.30 : x
  2. Step 2: Convert to fraction form
    586.01/878.49 = 312.30/x
  3. Step 3: Cross multiply
    586.01x = 878.49 × 312.30
  4. Step 4: Simplify right side
    586.01x = 274,352.43
  5. Step 5: Solve for x
    x = 274,352.43/586.01
  6. Step 6: Final answer
    x = 468.17

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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.