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Finding the Fourth Proportional to 210,573.98, 290,591.43 and 115,080.68

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Solution

The fourth proportional to 210,573.98, 290,591.43 and 115,080.68 is: 158,810.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,573.98 : 290,591.43 = 115,080.68 : x
  2. Step 2: Convert to fraction form
    210,573.98/290,591.43 = 115,080.68/x
  3. Step 3: Cross multiply
    210,573.98x = 290,591.43 × 115,080.68
  4. Step 4: Simplify right side
    210,573.98x = 33,441,457,913.62
  5. Step 5: Solve for x
    x = 33,441,457,913.62/210,573.98
  6. Step 6: Final answer
    x = 158,810.97

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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.