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Finding the Fourth Proportional to 253,555.08, 380,341.44 and 120,366.72

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Solution

The fourth proportional to 253,555.08, 380,341.44 and 120,366.72 is: 180,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,555.08 : 380,341.44 = 120,366.72 : x
  2. Step 2: Convert to fraction form
    253,555.08/380,341.44 = 120,366.72/x
  3. Step 3: Cross multiply
    253,555.08x = 380,341.44 × 120,366.72
  4. Step 4: Simplify right side
    253,555.08x = 45,780,451,612.88
  5. Step 5: Solve for x
    x = 45,780,451,612.88/253,555.08
  6. Step 6: Final answer
    x = 180,554.27

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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.