Home / 307,087.56-423,774.48-171,120.96

Finding the Fourth Proportional to 307,087.56, 423,774.48 and 171,120.96

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Solution

The fourth proportional to 307,087.56, 423,774.48 and 171,120.96 is: 236,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,087.56 : 423,774.48 = 171,120.96 : x
  2. Step 2: Convert to fraction form
    307,087.56/423,774.48 = 171,120.96/x
  3. Step 3: Cross multiply
    307,087.56x = 423,774.48 × 171,120.96
  4. Step 4: Simplify right side
    307,087.56x = 72,516,695,841.10
  5. Step 5: Solve for x
    x = 72,516,695,841.10/307,087.56
  6. Step 6: Final answer
    x = 236,143.38

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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.