Home / 385,348.14-531,771.90-210,917.46

Finding the Fourth Proportional to 385,348.14, 531,771.90 and 210,917.46

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Solution

The fourth proportional to 385,348.14, 531,771.90 and 210,917.46 is: 291,061.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,348.14 : 531,771.90 = 210,917.46 : x
  2. Step 2: Convert to fraction form
    385,348.14/531,771.90 = 210,917.46/x
  3. Step 3: Cross multiply
    385,348.14x = 531,771.90 × 210,917.46
  4. Step 4: Simplify right side
    385,348.14x = 112,159,978,447.37
  5. Step 5: Solve for x
    x = 112,159,978,447.37/385,348.14
  6. Step 6: Final answer
    x = 291,061.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.