Home / 329,250.45-493,864.65-139,588.77

Finding the Fourth Proportional to 329,250.45, 493,864.65 and 139,588.77

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Solution

The fourth proportional to 329,250.45, 493,864.65 and 139,588.77 is: 209,378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,250.45 : 493,864.65 = 139,588.77 : x
  2. Step 2: Convert to fraction form
    329,250.45/493,864.65 = 139,588.77/x
  3. Step 3: Cross multiply
    329,250.45x = 493,864.65 × 139,588.77
  4. Step 4: Simplify right side
    329,250.45x = 68,937,959,039.98
  5. Step 5: Solve for x
    x = 68,937,959,039.98/329,250.45
  6. Step 6: Final answer
    x = 209,378.48

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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.