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Finding the Fourth Proportional to 296,900.80, 445,696.80 and 178,705.60

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Solution

The fourth proportional to 296,900.80, 445,696.80 and 178,705.60 is: 268,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,900.80 : 445,696.80 = 178,705.60 : x
  2. Step 2: Convert to fraction form
    296,900.80/445,696.80 = 178,705.60/x
  3. Step 3: Cross multiply
    296,900.80x = 445,696.80 × 178,705.60
  4. Step 4: Simplify right side
    296,900.80x = 79,648,514,062.08
  5. Step 5: Solve for x
    x = 79,648,514,062.08/296,900.80
  6. Step 6: Final answer
    x = 268,266.42

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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.