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Finding the Fourth Proportional to 341,211.80, 511,817.70 and 262,479.80

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Solution

The fourth proportional to 341,211.80, 511,817.70 and 262,479.80 is: 393,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,211.80 : 511,817.70 = 262,479.80 : x
  2. Step 2: Convert to fraction form
    341,211.80/511,817.70 = 262,479.80/x
  3. Step 3: Cross multiply
    341,211.80x = 511,817.70 × 262,479.80
  4. Step 4: Simplify right side
    341,211.80x = 134,341,807,532.46
  5. Step 5: Solve for x
    x = 134,341,807,532.46/341,211.80
  6. Step 6: Final answer
    x = 393,719.70

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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.