Home / 379,029.35-523,106.36-215,725.55

Finding the Fourth Proportional to 379,029.35, 523,106.36 and 215,725.55

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Solution

The fourth proportional to 379,029.35, 523,106.36 and 215,725.55 is: 297,727.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,029.35 : 523,106.36 = 215,725.55 : x
  2. Step 2: Convert to fraction form
    379,029.35/523,106.36 = 215,725.55/x
  3. Step 3: Cross multiply
    379,029.35x = 523,106.36 × 215,725.55
  4. Step 4: Simplify right side
    379,029.35x = 112,847,403,525.34
  5. Step 5: Solve for x
    x = 112,847,403,525.34/379,029.35
  6. Step 6: Final answer
    x = 297,727.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.