Home / 289,921.36-434,462.32-199,871.64

Finding the Fourth Proportional to 289,921.36, 434,462.32 and 199,871.64

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Solution

The fourth proportional to 289,921.36, 434,462.32 and 199,871.64 is: 299,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,921.36 : 434,462.32 = 199,871.64 : x
  2. Step 2: Convert to fraction form
    289,921.36/434,462.32 = 199,871.64/x
  3. Step 3: Cross multiply
    289,921.36x = 434,462.32 × 199,871.64
  4. Step 4: Simplify right side
    289,921.36x = 86,836,696,416.60
  5. Step 5: Solve for x
    x = 86,836,696,416.60/289,921.36
  6. Step 6: Final answer
    x = 299,518.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.