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Finding the Fourth Proportional to 340,307.94, 469,616.97 and 189,401.70

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Solution

The fourth proportional to 340,307.94, 469,616.97 and 189,401.70 is: 261,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,307.94 : 469,616.97 = 189,401.70 : x
  2. Step 2: Convert to fraction form
    340,307.94/469,616.97 = 189,401.70/x
  3. Step 3: Cross multiply
    340,307.94x = 469,616.97 × 189,401.70
  4. Step 4: Simplify right side
    340,307.94x = 88,946,252,466.85
  5. Step 5: Solve for x
    x = 88,946,252,466.85/340,307.94
  6. Step 6: Final answer
    x = 261,369.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.