Home / 213,216.85-294,237.30-117,721.45

Finding the Fourth Proportional to 213,216.85, 294,237.30 and 117,721.45

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Solution

The fourth proportional to 213,216.85, 294,237.30 and 117,721.45 is: 162,454.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,216.85 : 294,237.30 = 117,721.45 : x
  2. Step 2: Convert to fraction form
    213,216.85/294,237.30 = 117,721.45/x
  3. Step 3: Cross multiply
    213,216.85x = 294,237.30 × 117,721.45
  4. Step 4: Simplify right side
    213,216.85x = 34,638,041,600.09
  5. Step 5: Solve for x
    x = 34,638,041,600.09/213,216.85
  6. Step 6: Final answer
    x = 162,454.52

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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.