Home / 213,429.48-294,588-122,794.72

Finding the Fourth Proportional to 213,429.48, 294,588 and 122,794.72

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Solution

The fourth proportional to 213,429.48, 294,588 and 122,794.72 is: 169,488.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,429.48 : 294,588 = 122,794.72 : x
  2. Step 2: Convert to fraction form
    213,429.48/294,588 = 122,794.72/x
  3. Step 3: Cross multiply
    213,429.48x = 294,588 × 122,794.72
  4. Step 4: Simplify right side
    213,429.48x = 36,173,850,975.36
  5. Step 5: Solve for x
    x = 36,173,850,975.36/213,429.48
  6. Step 6: Final answer
    x = 169,488.54

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1.5x scale

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.