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Finding the Fourth Proportional to 210,362.80, 290,299.20 and 114,869.44

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Solution

The fourth proportional to 210,362.80, 290,299.20 and 114,869.44 is: 158,519.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,362.80 : 290,299.20 = 114,869.44 : x
  2. Step 2: Convert to fraction form
    210,362.80/290,299.20 = 114,869.44/x
  3. Step 3: Cross multiply
    210,362.80x = 290,299.20 × 114,869.44
  4. Step 4: Simplify right side
    210,362.80x = 33,346,506,536.45
  5. Step 5: Solve for x
    x = 33,346,506,536.45/210,362.80
  6. Step 6: Final answer
    x = 158,519.03

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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.