Home / 288,126.05-432,078.30-199,109.68

Finding the Fourth Proportional to 288,126.05, 432,078.30 and 199,109.68

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Solution

The fourth proportional to 288,126.05, 432,078.30 and 199,109.68 is: 298,587.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,126.05 : 432,078.30 = 199,109.68 : x
  2. Step 2: Convert to fraction form
    288,126.05/432,078.30 = 199,109.68/x
  3. Step 3: Cross multiply
    288,126.05x = 432,078.30 × 199,109.68
  4. Step 4: Simplify right side
    288,126.05x = 86,030,970,967.75
  5. Step 5: Solve for x
    x = 86,030,970,967.75/288,126.05
  6. Step 6: Final answer
    x = 298,587.97

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1.5x scale

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.