Home / 285,180.40-393,558.24-164,312.32

Finding the Fourth Proportional to 285,180.40, 393,558.24 and 164,312.32

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Solution

The fourth proportional to 285,180.40, 393,558.24 and 164,312.32 is: 226,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,180.40 : 393,558.24 = 164,312.32 : x
  2. Step 2: Convert to fraction form
    285,180.40/393,558.24 = 164,312.32/x
  3. Step 3: Cross multiply
    285,180.40x = 393,558.24 × 164,312.32
  4. Step 4: Simplify right side
    285,180.40x = 64,666,467,469.52
  5. Step 5: Solve for x
    x = 64,666,467,469.52/285,180.40
  6. Step 6: Final answer
    x = 226,756.35

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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.