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Finding the Fourth Proportional to 553,554.40, 830,331.60 and 198,604.30

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Solution

The fourth proportional to 553,554.40, 830,331.60 and 198,604.30 is: 297,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,554.40 : 830,331.60 = 198,604.30 : x
  2. Step 2: Convert to fraction form
    553,554.40/830,331.60 = 198,604.30/x
  3. Step 3: Cross multiply
    553,554.40x = 830,331.60 × 198,604.30
  4. Step 4: Simplify right side
    553,554.40x = 164,907,426,185.88
  5. Step 5: Solve for x
    x = 164,907,426,185.88/553,554.40
  6. Step 6: Final answer
    x = 297,906.45

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Similar ratio
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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.