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Finding the Fourth Proportional to 531,111.76, 796,792.16 and 211,281.84

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Solution

The fourth proportional to 531,111.76, 796,792.16 and 211,281.84 is: 316,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,111.76 : 796,792.16 = 211,281.84 : x
  2. Step 2: Convert to fraction form
    531,111.76/796,792.16 = 211,281.84/x
  3. Step 3: Cross multiply
    531,111.76x = 796,792.16 × 211,281.84
  4. Step 4: Simplify right side
    531,111.76x = 168,347,713,662.37
  5. Step 5: Solve for x
    x = 168,347,713,662.37/531,111.76
  6. Step 6: Final answer
    x = 316,972.30

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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.