Home / 340,830.90-511,246.35-191,531.70

Finding the Fourth Proportional to 340,830.90, 511,246.35 and 191,531.70

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Solution

The fourth proportional to 340,830.90, 511,246.35 and 191,531.70 is: 287,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,830.90 : 511,246.35 = 191,531.70 : x
  2. Step 2: Convert to fraction form
    340,830.90/511,246.35 = 191,531.70/x
  3. Step 3: Cross multiply
    340,830.90x = 511,246.35 × 191,531.70
  4. Step 4: Simplify right side
    340,830.90x = 97,919,882,534.30
  5. Step 5: Solve for x
    x = 97,919,882,534.30/340,830.90
  6. Step 6: Final answer
    x = 287,297.55

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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.