Home / 442,669.20-664,003.80-256,045.20

Finding the Fourth Proportional to 442,669.20, 664,003.80 and 256,045.20

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Solution

The fourth proportional to 442,669.20, 664,003.80 and 256,045.20 is: 384,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,669.20 : 664,003.80 = 256,045.20 : x
  2. Step 2: Convert to fraction form
    442,669.20/664,003.80 = 256,045.20/x
  3. Step 3: Cross multiply
    442,669.20x = 664,003.80 × 256,045.20
  4. Step 4: Simplify right side
    442,669.20x = 170,014,985,771.76
  5. Step 5: Solve for x
    x = 170,014,985,771.76/442,669.20
  6. Step 6: Final answer
    x = 384,067.80

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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.