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Finding the Fourth Proportional to 219,299.78, 302,641.02 and 134,400.44

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Solution

The fourth proportional to 219,299.78, 302,641.02 and 134,400.44 is: 185,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,299.78 : 302,641.02 = 134,400.44 : x
  2. Step 2: Convert to fraction form
    219,299.78/302,641.02 = 134,400.44/x
  3. Step 3: Cross multiply
    219,299.78x = 302,641.02 × 134,400.44
  4. Step 4: Simplify right side
    219,299.78x = 40,675,086,250.05
  5. Step 5: Solve for x
    x = 40,675,086,250.05/219,299.78
  6. Step 6: Final answer
    x = 185,477.10

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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.