Home / 219,561.15-302,994.90-122,768.49

Finding the Fourth Proportional to 219,561.15, 302,994.90 and 122,768.49

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Solution

The fourth proportional to 219,561.15, 302,994.90 and 122,768.49 is: 169,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,561.15 : 302,994.90 = 122,768.49 : x
  2. Step 2: Convert to fraction form
    219,561.15/302,994.90 = 122,768.49/x
  3. Step 3: Cross multiply
    219,561.15x = 302,994.90 × 122,768.49
  4. Step 4: Simplify right side
    219,561.15x = 37,198,226,350.70
  5. Step 5: Solve for x
    x = 37,198,226,350.70/219,561.15
  6. Step 6: Final answer
    x = 169,420.80

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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.