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Finding the Fourth Proportional to 210,793.94, 290,889.48 and 115,298.60

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Solution

The fourth proportional to 210,793.94, 290,889.48 and 115,298.60 is: 159,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,793.94 : 290,889.48 = 115,298.60 : x
  2. Step 2: Convert to fraction form
    210,793.94/290,889.48 = 115,298.60/x
  3. Step 3: Cross multiply
    210,793.94x = 290,889.48 × 115,298.60
  4. Step 4: Simplify right side
    210,793.94x = 33,539,149,798.73
  5. Step 5: Solve for x
    x = 33,539,149,798.73/210,793.94
  6. Step 6: Final answer
    x = 159,108.70

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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.