Home / 289,146.43-433,867.89-139,514.32

Finding the Fourth Proportional to 289,146.43, 433,867.89 and 139,514.32

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Solution

The fourth proportional to 289,146.43, 433,867.89 and 139,514.32 is: 209,343.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,146.43 : 433,867.89 = 139,514.32 : x
  2. Step 2: Convert to fraction form
    289,146.43/433,867.89 = 139,514.32/x
  3. Step 3: Cross multiply
    289,146.43x = 433,867.89 × 139,514.32
  4. Step 4: Simplify right side
    289,146.43x = 60,530,783,643.18
  5. Step 5: Solve for x
    x = 60,530,783,643.18/289,146.43
  6. Step 6: Final answer
    x = 209,343.01

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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.