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Finding the Fourth Proportional to 210,245.71, 290,136.99 and 114,751.57

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Solution

The fourth proportional to 210,245.71, 290,136.99 and 114,751.57 is: 158,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,245.71 : 290,136.99 = 114,751.57 : x
  2. Step 2: Convert to fraction form
    210,245.71/290,136.99 = 114,751.57/x
  3. Step 3: Cross multiply
    210,245.71x = 290,136.99 × 114,751.57
  4. Step 4: Simplify right side
    210,245.71x = 33,293,675,117.57
  5. Step 5: Solve for x
    x = 33,293,675,117.57/210,245.71
  6. Step 6: Final answer
    x = 158,356.03

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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.