Home / 210,830.32-315,738.66-120,599.44

Finding the Fourth Proportional to 210,830.32, 315,738.66 and 120,599.44

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Solution

The fourth proportional to 210,830.32, 315,738.66 and 120,599.44 is: 180,609.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,830.32 : 315,738.66 = 120,599.44 : x
  2. Step 2: Convert to fraction form
    210,830.32/315,738.66 = 120,599.44/x
  3. Step 3: Cross multiply
    210,830.32x = 315,738.66 × 120,599.44
  4. Step 4: Simplify right side
    210,830.32x = 38,077,905,582.35
  5. Step 5: Solve for x
    x = 38,077,905,582.35/210,830.32
  6. Step 6: Final answer
    x = 180,609.25

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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.