Home / 296,128.20-443,900.70-146,391.60

Finding the Fourth Proportional to 296,128.20, 443,900.70 and 146,391.60

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Solution

The fourth proportional to 296,128.20, 443,900.70 and 146,391.60 is: 219,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,128.20 : 443,900.70 = 146,391.60 : x
  2. Step 2: Convert to fraction form
    296,128.20/443,900.70 = 146,391.60/x
  3. Step 3: Cross multiply
    296,128.20x = 443,900.70 × 146,391.60
  4. Step 4: Simplify right side
    296,128.20x = 64,983,333,714.12
  5. Step 5: Solve for x
    x = 64,983,333,714.12/296,128.20
  6. Step 6: Final answer
    x = 219,443.25

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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.