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Finding the Fourth Proportional to 340,863.80, 511,449.30 and 163,302.20

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Solution

The fourth proportional to 340,863.80, 511,449.30 and 163,302.20 is: 245,026.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,863.80 : 511,449.30 = 163,302.20 : x
  2. Step 2: Convert to fraction form
    340,863.80/511,449.30 = 163,302.20/x
  3. Step 3: Cross multiply
    340,863.80x = 511,449.30 × 163,302.20
  4. Step 4: Simplify right side
    340,863.80x = 83,520,795,878.46
  5. Step 5: Solve for x
    x = 83,520,795,878.46/340,863.80
  6. Step 6: Final answer
    x = 245,026.89

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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.