Home / 289,064.91-398,812.69-168,180.31

Finding the Fourth Proportional to 289,064.91, 398,812.69 and 168,180.31

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Solution

The fourth proportional to 289,064.91, 398,812.69 and 168,180.31 is: 232,032.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,064.91 : 398,812.69 = 168,180.31 : x
  2. Step 2: Convert to fraction form
    289,064.91/398,812.69 = 168,180.31/x
  3. Step 3: Cross multiply
    289,064.91x = 398,812.69 × 168,180.31
  4. Step 4: Simplify right side
    289,064.91x = 67,072,442,544.88
  5. Step 5: Solve for x
    x = 67,072,442,544.88/289,064.91
  6. Step 6: Final answer
    x = 232,032.46

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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.