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Finding the Fourth Proportional to 219,339.72, 302,687.46 and 118,737

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Solution

The fourth proportional to 219,339.72, 302,687.46 and 118,737 is: 163,856.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,339.72 : 302,687.46 = 118,737 : x
  2. Step 2: Convert to fraction form
    219,339.72/302,687.46 = 118,737/x
  3. Step 3: Cross multiply
    219,339.72x = 302,687.46 × 118,737
  4. Step 4: Simplify right side
    219,339.72x = 35,940,200,938.02
  5. Step 5: Solve for x
    x = 35,940,200,938.02/219,339.72
  6. Step 6: Final answer
    x = 163,856.33

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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.