Home / 257,554.28-355,498.98-155,563.54

Finding the Fourth Proportional to 257,554.28, 355,498.98 and 155,563.54

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Solution

The fourth proportional to 257,554.28, 355,498.98 and 155,563.54 is: 214,722.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,554.28 : 355,498.98 = 155,563.54 : x
  2. Step 2: Convert to fraction form
    257,554.28/355,498.98 = 155,563.54/x
  3. Step 3: Cross multiply
    257,554.28x = 355,498.98 × 155,563.54
  4. Step 4: Simplify right side
    257,554.28x = 55,302,678,323.08
  5. Step 5: Solve for x
    x = 55,302,678,323.08/257,554.28
  6. Step 6: Final answer
    x = 214,722.42

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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.