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Finding the Fourth Proportional to 296,195.40, 443,601.90 and 290,256.20

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Solution

The fourth proportional to 296,195.40, 443,601.90 and 290,256.20 is: 434,706.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,195.40 : 443,601.90 = 290,256.20 : x
  2. Step 2: Convert to fraction form
    296,195.40/443,601.90 = 290,256.20/x
  3. Step 3: Cross multiply
    296,195.40x = 443,601.90 × 290,256.20
  4. Step 4: Simplify right side
    296,195.40x = 128,758,201,806.78
  5. Step 5: Solve for x
    x = 128,758,201,806.78/296,195.40
  6. Step 6: Final answer
    x = 434,706.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.