Home / 312,164.76-430,784.04-168,921.60

Finding the Fourth Proportional to 312,164.76, 430,784.04 and 168,921.60

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Solution

The fourth proportional to 312,164.76, 430,784.04 and 168,921.60 is: 233,110.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,164.76 : 430,784.04 = 168,921.60 : x
  2. Step 2: Convert to fraction form
    312,164.76/430,784.04 = 168,921.60/x
  3. Step 3: Cross multiply
    312,164.76x = 430,784.04 × 168,921.60
  4. Step 4: Simplify right side
    312,164.76x = 72,768,729,291.26
  5. Step 5: Solve for x
    x = 72,768,729,291.26/312,164.76
  6. Step 6: Final answer
    x = 233,110.01

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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.