Home / 289,184.12-399,076.09-168,395.84

Finding the Fourth Proportional to 289,184.12, 399,076.09 and 168,395.84

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Solution

The fourth proportional to 289,184.12, 399,076.09 and 168,395.84 is: 232,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,184.12 : 399,076.09 = 168,395.84 : x
  2. Step 2: Convert to fraction form
    289,184.12/399,076.09 = 168,395.84/x
  3. Step 3: Cross multiply
    289,184.12x = 399,076.09 × 168,395.84
  4. Step 4: Simplify right side
    289,184.12x = 67,202,750,983.10
  5. Step 5: Solve for x
    x = 67,202,750,983.10/289,184.12
  6. Step 6: Final answer
    x = 232,387.42

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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.