Home / 389,868.63-584,474.90-190,086.18

Finding the Fourth Proportional to 389,868.63, 584,474.90 and 190,086.18

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Solution

The fourth proportional to 389,868.63, 584,474.90 and 190,086.18 is: 284,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,868.63 : 584,474.90 = 190,086.18 : x
  2. Step 2: Convert to fraction form
    389,868.63/584,474.90 = 190,086.18/x
  3. Step 3: Cross multiply
    389,868.63x = 584,474.90 × 190,086.18
  4. Step 4: Simplify right side
    389,868.63x = 111,100,600,096.45
  5. Step 5: Solve for x
    x = 111,100,600,096.45/389,868.63
  6. Step 6: Final answer
    x = 284,969.32

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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.