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Finding the Fourth Proportional to 580.19, 870.27 and 214.83

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Solution

The fourth proportional to 580.19, 870.27 and 214.83 is: 322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.19 : 870.27 = 214.83 : x
  2. Step 2: Convert to fraction form
    580.19/870.27 = 214.83/x
  3. Step 3: Cross multiply
    580.19x = 870.27 × 214.83
  4. Step 4: Simplify right side
    580.19x = 186,960.10
  5. Step 5: Solve for x
    x = 186,960.10/580.19
  6. Step 6: Final answer
    x = 322.24

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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.