Home / 282,329.60-389,615.52-155,013.36

Finding the Fourth Proportional to 282,329.60, 389,615.52 and 155,013.36

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Solution

The fourth proportional to 282,329.60, 389,615.52 and 155,013.36 is: 213,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,329.60 : 389,615.52 = 155,013.36 : x
  2. Step 2: Convert to fraction form
    282,329.60/389,615.52 = 155,013.36/x
  3. Step 3: Cross multiply
    282,329.60x = 389,615.52 × 155,013.36
  4. Step 4: Simplify right side
    282,329.60x = 60,395,610,863.35
  5. Step 5: Solve for x
    x = 60,395,610,863.35/282,329.60
  6. Step 6: Final answer
    x = 213,918.81

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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.