Home / 219,135.51-302,403.24-122,334.30

Finding the Fourth Proportional to 219,135.51, 302,403.24 and 122,334.30

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Solution

The fourth proportional to 219,135.51, 302,403.24 and 122,334.30 is: 168,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,135.51 : 302,403.24 = 122,334.30 : x
  2. Step 2: Convert to fraction form
    219,135.51/302,403.24 = 122,334.30/x
  3. Step 3: Cross multiply
    219,135.51x = 302,403.24 × 122,334.30
  4. Step 4: Simplify right side
    219,135.51x = 36,994,288,683.13
  5. Step 5: Solve for x
    x = 36,994,288,683.13/219,135.51
  6. Step 6: Final answer
    x = 168,819.23

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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.