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Finding the Fourth Proportional to 219,415.50, 302,800.14 and 122,626.98

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Solution

The fourth proportional to 219,415.50, 302,800.14 and 122,626.98 is: 169,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,415.50 : 302,800.14 = 122,626.98 : x
  2. Step 2: Convert to fraction form
    219,415.50/302,800.14 = 122,626.98/x
  3. Step 3: Cross multiply
    219,415.50x = 302,800.14 × 122,626.98
  4. Step 4: Simplify right side
    219,415.50x = 37,131,466,711.78
  5. Step 5: Solve for x
    x = 37,131,466,711.78/219,415.50
  6. Step 6: Final answer
    x = 169,229.00

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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.