Home / 154,246.40-231,369.60-144,915.20

Finding the Fourth Proportional to 154,246.40, 231,369.60 and 144,915.20

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Solution

The fourth proportional to 154,246.40, 231,369.60 and 144,915.20 is: 217,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,246.40 : 231,369.60 = 144,915.20 : x
  2. Step 2: Convert to fraction form
    154,246.40/231,369.60 = 144,915.20/x
  3. Step 3: Cross multiply
    154,246.40x = 231,369.60 × 144,915.20
  4. Step 4: Simplify right side
    154,246.40x = 33,528,971,857.92
  5. Step 5: Solve for x
    x = 33,528,971,857.92/154,246.40
  6. Step 6: Final answer
    x = 217,372.80

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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.