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Finding the Fourth Proportional to 281,560.91, 388,458.95 and 160,617.06

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Solution

The fourth proportional to 281,560.91, 388,458.95 and 160,617.06 is: 221,597.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,560.91 : 388,458.95 = 160,617.06 : x
  2. Step 2: Convert to fraction form
    281,560.91/388,458.95 = 160,617.06/x
  3. Step 3: Cross multiply
    281,560.91x = 388,458.95 × 160,617.06
  4. Step 4: Simplify right side
    281,560.91x = 62,393,133,676.60
  5. Step 5: Solve for x
    x = 62,393,133,676.60/281,560.91
  6. Step 6: Final answer
    x = 221,597.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.