Home / 531,142.20-797,166.90-215,825.40

Finding the Fourth Proportional to 531,142.20, 797,166.90 and 215,825.40

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Solution

The fourth proportional to 531,142.20, 797,166.90 and 215,825.40 is: 323,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,142.20 : 797,166.90 = 215,825.40 : x
  2. Step 2: Convert to fraction form
    531,142.20/797,166.90 = 215,825.40/x
  3. Step 3: Cross multiply
    531,142.20x = 797,166.90 × 215,825.40
  4. Step 4: Simplify right side
    531,142.20x = 172,048,865,059.26
  5. Step 5: Solve for x
    x = 172,048,865,059.26/531,142.20
  6. Step 6: Final answer
    x = 323,922.42

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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.