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Finding the Fourth Proportional to 210,220.94, 290,111.13 and 114,733.82

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Solution

The fourth proportional to 210,220.94, 290,111.13 and 114,733.82 is: 158,336.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,220.94 : 290,111.13 = 114,733.82 : x
  2. Step 2: Convert to fraction form
    210,220.94/290,111.13 = 114,733.82/x
  3. Step 3: Cross multiply
    210,220.94x = 290,111.13 × 114,733.82
  4. Step 4: Simplify right side
    210,220.94x = 33,285,558,169.42
  5. Step 5: Solve for x
    x = 33,285,558,169.42/210,220.94
  6. Step 6: Final answer
    x = 158,336.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.