Home / 282,497.10-389,848.32-155,175.54

Finding the Fourth Proportional to 282,497.10, 389,848.32 and 155,175.54

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Solution

The fourth proportional to 282,497.10, 389,848.32 and 155,175.54 is: 214,143.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,497.10 : 389,848.32 = 155,175.54 : x
  2. Step 2: Convert to fraction form
    282,497.10/389,848.32 = 155,175.54/x
  3. Step 3: Cross multiply
    282,497.10x = 389,848.32 × 155,175.54
  4. Step 4: Simplify right side
    282,497.10x = 60,494,923,574.09
  5. Step 5: Solve for x
    x = 60,494,923,574.09/282,497.10
  6. Step 6: Final answer
    x = 214,143.52

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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.