Home / 307,099.36-423,790.20-171,132.64

Finding the Fourth Proportional to 307,099.36, 423,790.20 and 171,132.64

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Solution

The fourth proportional to 307,099.36, 423,790.20 and 171,132.64 is: 236,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,099.36 : 423,790.20 = 171,132.64 : x
  2. Step 2: Convert to fraction form
    307,099.36/423,790.20 = 171,132.64/x
  3. Step 3: Cross multiply
    307,099.36x = 423,790.20 × 171,132.64
  4. Step 4: Simplify right side
    307,099.36x = 72,524,335,732.13
  5. Step 5: Solve for x
    x = 72,524,335,732.13/307,099.36
  6. Step 6: Final answer
    x = 236,159.19

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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.