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Finding the Fourth Proportional to 341,210.80, 511,816.20 and 262,478.80

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Solution

The fourth proportional to 341,210.80, 511,816.20 and 262,478.80 is: 393,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,210.80 : 511,816.20 = 262,478.80 : x
  2. Step 2: Convert to fraction form
    341,210.80/511,816.20 = 262,478.80/x
  3. Step 3: Cross multiply
    341,210.80x = 511,816.20 × 262,478.80
  4. Step 4: Simplify right side
    341,210.80x = 134,340,901,996.56
  5. Step 5: Solve for x
    x = 134,340,901,996.56/341,210.80
  6. Step 6: Final answer
    x = 393,718.20

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Similar ratio
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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.