Home / 289,964.54-434,986.34-168,442.16

Finding the Fourth Proportional to 289,964.54, 434,986.34 and 168,442.16

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Solution

The fourth proportional to 289,964.54, 434,986.34 and 168,442.16 is: 252,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,964.54 : 434,986.34 = 168,442.16 : x
  2. Step 2: Convert to fraction form
    289,964.54/434,986.34 = 168,442.16/x
  3. Step 3: Cross multiply
    289,964.54x = 434,986.34 × 168,442.16
  4. Step 4: Simplify right side
    289,964.54x = 73,270,037,837.88
  5. Step 5: Solve for x
    x = 73,270,037,837.88/289,964.54
  6. Step 6: Final answer
    x = 252,686.20

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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.