Home / 221,641.80-307,101.03-216,853.22

Finding the Fourth Proportional to 221,641.80, 307,101.03 and 216,853.22

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Solution

The fourth proportional to 221,641.80, 307,101.03 and 216,853.22 is: 300,466.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,641.80 : 307,101.03 = 216,853.22 : x
  2. Step 2: Convert to fraction form
    221,641.80/307,101.03 = 216,853.22/x
  3. Step 3: Cross multiply
    221,641.80x = 307,101.03 × 216,853.22
  4. Step 4: Simplify right side
    221,641.80x = 66,595,845,685.31
  5. Step 5: Solve for x
    x = 66,595,845,685.31/221,641.80
  6. Step 6: Final answer
    x = 300,466.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.