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Finding the Fourth Proportional to 340,911, 511,440.32 and 130,548.95

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Solution

The fourth proportional to 340,911, 511,440.32 and 130,548.95 is: 195,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,911 : 511,440.32 = 130,548.95 : x
  2. Step 2: Convert to fraction form
    340,911/511,440.32 = 130,548.95/x
  3. Step 3: Cross multiply
    340,911x = 511,440.32 × 130,548.95
  4. Step 4: Simplify right side
    340,911x = 66,767,993,553.72
  5. Step 5: Solve for x
    x = 66,767,993,553.72/340,911
  6. Step 6: Final answer
    x = 195,851.68

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1.5x scale

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.