Home / 282,439.09-423,662.05-82,763.52

Finding the Fourth Proportional to 282,439.09, 423,662.05 and 82,763.52

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Solution

The fourth proportional to 282,439.09, 423,662.05 and 82,763.52 is: 124,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,439.09 : 423,662.05 = 82,763.52 : x
  2. Step 2: Convert to fraction form
    282,439.09/423,662.05 = 82,763.52/x
  3. Step 3: Cross multiply
    282,439.09x = 423,662.05 × 82,763.52
  4. Step 4: Simplify right side
    282,439.09x = 35,063,762,548.42
  5. Step 5: Solve for x
    x = 35,063,762,548.42/282,439.09
  6. Step 6: Final answer
    x = 124,146.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.