Home / 621,231.75-931,868.28-171,915.03

Finding the Fourth Proportional to 621,231.75, 931,868.28 and 171,915.03

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Solution

The fourth proportional to 621,231.75, 931,868.28 and 171,915.03 is: 257,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,231.75 : 931,868.28 = 171,915.03 : x
  2. Step 2: Convert to fraction form
    621,231.75/931,868.28 = 171,915.03/x
  3. Step 3: Cross multiply
    621,231.75x = 931,868.28 × 171,915.03
  4. Step 4: Simplify right side
    621,231.75x = 160,202,163,312.25
  5. Step 5: Solve for x
    x = 160,202,163,312.25/621,231.75
  6. Step 6: Final answer
    x = 257,878.26

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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.