Home / 373,986.20-561,173.70-163,645.40

Finding the Fourth Proportional to 373,986.20, 561,173.70 and 163,645.40

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Solution

The fourth proportional to 373,986.20, 561,173.70 and 163,645.40 is: 245,553.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,986.20 : 561,173.70 = 163,645.40 : x
  2. Step 2: Convert to fraction form
    373,986.20/561,173.70 = 163,645.40/x
  3. Step 3: Cross multiply
    373,986.20x = 561,173.70 × 163,645.40
  4. Step 4: Simplify right side
    373,986.20x = 91,833,494,605.98
  5. Step 5: Solve for x
    x = 91,833,494,605.98/373,986.20
  6. Step 6: Final answer
    x = 245,553.16

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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.