Home / 285,503.36-393,983.04-158,184.32

Finding the Fourth Proportional to 285,503.36, 393,983.04 and 158,184.32

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Solution

The fourth proportional to 285,503.36, 393,983.04 and 158,184.32 is: 218,287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,503.36 : 393,983.04 = 158,184.32 : x
  2. Step 2: Convert to fraction form
    285,503.36/393,983.04 = 158,184.32/x
  3. Step 3: Cross multiply
    285,503.36x = 393,983.04 × 158,184.32
  4. Step 4: Simplify right side
    285,503.36x = 62,321,939,273.93
  5. Step 5: Solve for x
    x = 62,321,939,273.93/285,503.36
  6. Step 6: Final answer
    x = 218,287.94

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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.