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Finding the Fourth Proportional to 341,481.80, 511,056.30 and 299,491.40

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Solution

The fourth proportional to 341,481.80, 511,056.30 and 299,491.40 is: 448,214.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,481.80 : 511,056.30 = 299,491.40 : x
  2. Step 2: Convert to fraction form
    341,481.80/511,056.30 = 299,491.40/x
  3. Step 3: Cross multiply
    341,481.80x = 511,056.30 × 299,491.40
  4. Step 4: Simplify right side
    341,481.80x = 153,056,966,765.82
  5. Step 5: Solve for x
    x = 153,056,966,765.82/341,481.80
  6. Step 6: Final answer
    x = 448,214.13

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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.