Home / 291,442.23-401,962.32-189,500.67

Finding the Fourth Proportional to 291,442.23, 401,962.32 and 189,500.67

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Solution

The fourth proportional to 291,442.23, 401,962.32 and 189,500.67 is: 261,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,442.23 : 401,962.32 = 189,500.67 : x
  2. Step 2: Convert to fraction form
    291,442.23/401,962.32 = 189,500.67/x
  3. Step 3: Cross multiply
    291,442.23x = 401,962.32 × 189,500.67
  4. Step 4: Simplify right side
    291,442.23x = 76,172,128,954.75
  5. Step 5: Solve for x
    x = 76,172,128,954.75/291,442.23
  6. Step 6: Final answer
    x = 261,362.70

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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.