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Finding the Fourth Proportional to 340,466.64, 510,528.36 and 198,358.80

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Solution

The fourth proportional to 340,466.64, 510,528.36 and 198,358.80 is: 297,438.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,466.64 : 510,528.36 = 198,358.80 : x
  2. Step 2: Convert to fraction form
    340,466.64/510,528.36 = 198,358.80/x
  3. Step 3: Cross multiply
    340,466.64x = 510,528.36 × 198,358.80
  4. Step 4: Simplify right side
    340,466.64x = 101,267,792,855.57
  5. Step 5: Solve for x
    x = 101,267,792,855.57/340,466.64
  6. Step 6: Final answer
    x = 297,438.22

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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.