Home / 307,130.28-423,870.66-186,267.56

Finding the Fourth Proportional to 307,130.28, 423,870.66 and 186,267.56

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Solution

The fourth proportional to 307,130.28, 423,870.66 and 186,267.56 is: 257,067.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,130.28 : 423,870.66 = 186,267.56 : x
  2. Step 2: Convert to fraction form
    307,130.28/423,870.66 = 186,267.56/x
  3. Step 3: Cross multiply
    307,130.28x = 423,870.66 × 186,267.56
  4. Step 4: Simplify right side
    307,130.28x = 78,953,353,593.79
  5. Step 5: Solve for x
    x = 78,953,353,593.79/307,130.28
  6. Step 6: Final answer
    x = 257,067.96

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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.