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Finding the Fourth Proportional to 291,067.86, 401,526.67 and 170,130.14

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Solution

The fourth proportional to 291,067.86, 401,526.67 and 170,130.14 is: 234,693.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,067.86 : 401,526.67 = 170,130.14 : x
  2. Step 2: Convert to fraction form
    291,067.86/401,526.67 = 170,130.14/x
  3. Step 3: Cross multiply
    291,067.86x = 401,526.67 × 170,130.14
  4. Step 4: Simplify right side
    291,067.86x = 68,311,785,722.55
  5. Step 5: Solve for x
    x = 68,311,785,722.55/291,067.86
  6. Step 6: Final answer
    x = 234,693.67

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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.