Home / 282,786.26-390,245.04-155,461.87

Finding the Fourth Proportional to 282,786.26, 390,245.04 and 155,461.87

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Solution

The fourth proportional to 282,786.26, 390,245.04 and 155,461.87 is: 214,537.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,786.26 : 390,245.04 = 155,461.87 : x
  2. Step 2: Convert to fraction form
    282,786.26/390,245.04 = 155,461.87/x
  3. Step 3: Cross multiply
    282,786.26x = 390,245.04 × 155,461.87
  4. Step 4: Simplify right side
    282,786.26x = 60,668,221,725.40
  5. Step 5: Solve for x
    x = 60,668,221,725.40/282,786.26
  6. Step 6: Final answer
    x = 214,537.37

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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.