Home / 388,835.30-583,197.58-122,561.21

Finding the Fourth Proportional to 388,835.30, 583,197.58 and 122,561.21

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Solution

The fourth proportional to 388,835.30, 583,197.58 and 122,561.21 is: 183,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,835.30 : 583,197.58 = 122,561.21 : x
  2. Step 2: Convert to fraction form
    388,835.30/583,197.58 = 122,561.21/x
  3. Step 3: Cross multiply
    388,835.30x = 583,197.58 × 122,561.21
  4. Step 4: Simplify right side
    388,835.30x = 71,477,401,073.87
  5. Step 5: Solve for x
    x = 71,477,401,073.87/388,835.30
  6. Step 6: Final answer
    x = 183,824.36

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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.