Home / 189,256.24-284,081.28-139,392.64

Finding the Fourth Proportional to 189,256.24, 284,081.28 and 139,392.64

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Solution

The fourth proportional to 189,256.24, 284,081.28 and 139,392.64 is: 209,234.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,256.24 : 284,081.28 = 139,392.64 : x
  2. Step 2: Convert to fraction form
    189,256.24/284,081.28 = 139,392.64/x
  3. Step 3: Cross multiply
    189,256.24x = 284,081.28 × 139,392.64
  4. Step 4: Simplify right side
    189,256.24x = 39,598,839,593.78
  5. Step 5: Solve for x
    x = 39,598,839,593.78/189,256.24
  6. Step 6: Final answer
    x = 209,234.00

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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.