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Finding the Fourth Proportional to 329,075.20, 493,612.80 and 300,044.80

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Solution

The fourth proportional to 329,075.20, 493,612.80 and 300,044.80 is: 450,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,075.20 : 493,612.80 = 300,044.80 : x
  2. Step 2: Convert to fraction form
    329,075.20/493,612.80 = 300,044.80/x
  3. Step 3: Cross multiply
    329,075.20x = 493,612.80 × 300,044.80
  4. Step 4: Simplify right side
    329,075.20x = 148,105,953,853.44
  5. Step 5: Solve for x
    x = 148,105,953,853.44/329,075.20
  6. Step 6: Final answer
    x = 450,067.20

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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.