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Finding the Fourth Proportional to 210,614.76, 290,843.46 and 135,295.56

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Solution

The fourth proportional to 210,614.76, 290,843.46 and 135,295.56 is: 186,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,614.76 : 290,843.46 = 135,295.56 : x
  2. Step 2: Convert to fraction form
    210,614.76/290,843.46 = 135,295.56/x
  3. Step 3: Cross multiply
    210,614.76x = 290,843.46 × 135,295.56
  4. Step 4: Simplify right side
    210,614.76x = 39,349,828,793.04
  5. Step 5: Solve for x
    x = 39,349,828,793.04/210,614.76
  6. Step 6: Final answer
    x = 186,833.20

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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.