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Finding the Fourth Proportional to 215,085.90, 296,817.57 and 119,586.90

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Solution

The fourth proportional to 215,085.90, 296,817.57 and 119,586.90 is: 165,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,085.90 : 296,817.57 = 119,586.90 : x
  2. Step 2: Convert to fraction form
    215,085.90/296,817.57 = 119,586.90/x
  3. Step 3: Cross multiply
    215,085.90x = 296,817.57 × 119,586.90
  4. Step 4: Simplify right side
    215,085.90x = 35,495,493,061.83
  5. Step 5: Solve for x
    x = 35,495,493,061.83/215,085.90
  6. Step 6: Final answer
    x = 165,029.38

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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.