Home / 307,115.88-423,814.18-171,146.85

Finding the Fourth Proportional to 307,115.88, 423,814.18 and 171,146.85

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Solution

The fourth proportional to 307,115.88, 423,814.18 and 171,146.85 is: 236,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,115.88 : 423,814.18 = 171,146.85 : x
  2. Step 2: Convert to fraction form
    307,115.88/423,814.18 = 171,146.85/x
  3. Step 3: Cross multiply
    307,115.88x = 423,814.18 × 171,146.85
  4. Step 4: Simplify right side
    307,115.88x = 72,534,460,404.93
  5. Step 5: Solve for x
    x = 72,534,460,404.93/307,115.88
  6. Step 6: Final answer
    x = 236,179.45

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1.5x scale

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.