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Finding the Fourth Proportional to 341,260.80, 511,891.20 and 288,116.70

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Solution

The fourth proportional to 341,260.80, 511,891.20 and 288,116.70 is: 432,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,260.80 : 511,891.20 = 288,116.70 : x
  2. Step 2: Convert to fraction form
    341,260.80/511,891.20 = 288,116.70/x
  3. Step 3: Cross multiply
    341,260.80x = 511,891.20 × 288,116.70
  4. Step 4: Simplify right side
    341,260.80x = 147,484,403,303.04
  5. Step 5: Solve for x
    x = 147,484,403,303.04/341,260.80
  6. Step 6: Final answer
    x = 432,175.05

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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.