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Finding the Fourth Proportional to 281,599.89, 388,604.61 and 152,535.90

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Solution

The fourth proportional to 281,599.89, 388,604.61 and 152,535.90 is: 210,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,599.89 : 388,604.61 = 152,535.90 : x
  2. Step 2: Convert to fraction form
    281,599.89/388,604.61 = 152,535.90/x
  3. Step 3: Cross multiply
    281,599.89x = 388,604.61 × 152,535.90
  4. Step 4: Simplify right side
    281,599.89x = 59,276,153,930.50
  5. Step 5: Solve for x
    x = 59,276,153,930.50/281,599.89
  6. Step 6: Final answer
    x = 210,497.79

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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.