Home / 288,316.86-432,477.11-189,107.25

Finding the Fourth Proportional to 288,316.86, 432,477.11 and 189,107.25

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Solution

The fourth proportional to 288,316.86, 432,477.11 and 189,107.25 is: 283,662.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,316.86 : 432,477.11 = 189,107.25 : x
  2. Step 2: Convert to fraction form
    288,316.86/432,477.11 = 189,107.25/x
  3. Step 3: Cross multiply
    288,316.86x = 432,477.11 × 189,107.25
  4. Step 4: Simplify right side
    288,316.86x = 81,784,556,960.05
  5. Step 5: Solve for x
    x = 81,784,556,960.05/288,316.86
  6. Step 6: Final answer
    x = 283,662.07

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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.