Home / 348,021.90-521,611.65-147,922.20

Finding the Fourth Proportional to 348,021.90, 521,611.65 and 147,922.20

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Solution

The fourth proportional to 348,021.90, 521,611.65 and 147,922.20 is: 221,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,021.90 : 521,611.65 = 147,922.20 : x
  2. Step 2: Convert to fraction form
    348,021.90/521,611.65 = 147,922.20/x
  3. Step 3: Cross multiply
    348,021.90x = 521,611.65 × 147,922.20
  4. Step 4: Simplify right side
    348,021.90x = 77,157,942,813.63
  5. Step 5: Solve for x
    x = 77,157,942,813.63/348,021.90
  6. Step 6: Final answer
    x = 221,704.27

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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.