Home / 307,184.20-423,933.60-186,336.88

Finding the Fourth Proportional to 307,184.20, 423,933.60 and 186,336.88

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Solution

The fourth proportional to 307,184.20, 423,933.60 and 186,336.88 is: 257,156.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,184.20 : 423,933.60 = 186,336.88 : x
  2. Step 2: Convert to fraction form
    307,184.20/423,933.60 = 186,336.88/x
  3. Step 3: Cross multiply
    307,184.20x = 423,933.60 × 186,336.88
  4. Step 4: Simplify right side
    307,184.20x = 78,994,464,351.17
  5. Step 5: Solve for x
    x = 78,994,464,351.17/307,184.20
  6. Step 6: Final answer
    x = 257,156.66

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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.