Home / 290,915.55-436,422.33-148,822.38

Finding the Fourth Proportional to 290,915.55, 436,422.33 and 148,822.38

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Solution

The fourth proportional to 290,915.55, 436,422.33 and 148,822.38 is: 223,258.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,915.55 : 436,422.33 = 148,822.38 : x
  2. Step 2: Convert to fraction form
    290,915.55/436,422.33 = 148,822.38/x
  3. Step 3: Cross multiply
    290,915.55x = 436,422.33 × 148,822.38
  4. Step 4: Simplify right side
    290,915.55x = 64,949,409,835.75
  5. Step 5: Solve for x
    x = 64,949,409,835.75/290,915.55
  6. Step 6: Final answer
    x = 223,258.64

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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.