Home / 318,331.92-477,498.44-105,111.76

Finding the Fourth Proportional to 318,331.92, 477,498.44 and 105,111.76

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Solution

The fourth proportional to 318,331.92, 477,498.44 and 105,111.76 is: 157,667.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,331.92 : 477,498.44 = 105,111.76 : x
  2. Step 2: Convert to fraction form
    318,331.92/477,498.44 = 105,111.76/x
  3. Step 3: Cross multiply
    318,331.92x = 477,498.44 × 105,111.76
  4. Step 4: Simplify right side
    318,331.92x = 50,190,701,425.65
  5. Step 5: Solve for x
    x = 50,190,701,425.65/318,331.92
  6. Step 6: Final answer
    x = 157,667.82

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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.