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Finding the Fourth Proportional to 296,340.80, 444,511.20 and 130,128.80

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Solution

The fourth proportional to 296,340.80, 444,511.20 and 130,128.80 is: 195,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,340.80 : 444,511.20 = 130,128.80 : x
  2. Step 2: Convert to fraction form
    296,340.80/444,511.20 = 130,128.80/x
  3. Step 3: Cross multiply
    296,340.80x = 444,511.20 × 130,128.80
  4. Step 4: Simplify right side
    296,340.80x = 57,843,709,042.56
  5. Step 5: Solve for x
    x = 57,843,709,042.56/296,340.80
  6. Step 6: Final answer
    x = 195,193.20

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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.