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Finding the Fourth Proportional to 281,558.16, 388,472.85 and 160,655.94

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Solution

The fourth proportional to 281,558.16, 388,472.85 and 160,655.94 is: 221,661.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,558.16 : 388,472.85 = 160,655.94 : x
  2. Step 2: Convert to fraction form
    281,558.16/388,472.85 = 160,655.94/x
  3. Step 3: Cross multiply
    281,558.16x = 388,472.85 × 160,655.94
  4. Step 4: Simplify right side
    281,558.16x = 62,410,470,881.23
  5. Step 5: Solve for x
    x = 62,410,470,881.23/281,558.16
  6. Step 6: Final answer
    x = 221,661.03

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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.