Home / 228,585.42-315,465.75-131,820.39

Finding the Fourth Proportional to 228,585.42, 315,465.75 and 131,820.39

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Solution

The fourth proportional to 228,585.42, 315,465.75 and 131,820.39 is: 181,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,585.42 : 315,465.75 = 131,820.39 : x
  2. Step 2: Convert to fraction form
    228,585.42/315,465.75 = 131,820.39/x
  3. Step 3: Cross multiply
    228,585.42x = 315,465.75 × 131,820.39
  4. Step 4: Simplify right side
    228,585.42x = 41,584,818,196.64
  5. Step 5: Solve for x
    x = 41,584,818,196.64/228,585.42
  6. Step 6: Final answer
    x = 181,922.44

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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.