Home / 356,053.39-533,941.68-128,288.28

Finding the Fourth Proportional to 356,053.39, 533,941.68 and 128,288.28

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Solution

The fourth proportional to 356,053.39, 533,941.68 and 128,288.28 is: 192,382.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,053.39 : 533,941.68 = 128,288.28 : x
  2. Step 2: Convert to fraction form
    356,053.39/533,941.68 = 128,288.28/x
  3. Step 3: Cross multiply
    356,053.39x = 533,941.68 × 128,288.28
  4. Step 4: Simplify right side
    356,053.39x = 68,498,457,077.80
  5. Step 5: Solve for x
    x = 68,498,457,077.80/356,053.39
  6. Step 6: Final answer
    x = 192,382.54

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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.