Home / 353,126.60-528,998.70-212,467.40

Finding the Fourth Proportional to 353,126.60, 528,998.70 and 212,467.40

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Solution

The fourth proportional to 353,126.60, 528,998.70 and 212,467.40 is: 318,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,126.60 : 528,998.70 = 212,467.40 : x
  2. Step 2: Convert to fraction form
    353,126.60/528,998.70 = 212,467.40/x
  3. Step 3: Cross multiply
    353,126.60x = 528,998.70 × 212,467.40
  4. Step 4: Simplify right side
    353,126.60x = 112,394,978,392.38
  5. Step 5: Solve for x
    x = 112,394,978,392.38/353,126.60
  6. Step 6: Final answer
    x = 318,285.22

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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.