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Finding the Fourth Proportional to 218,130.27, 300,896.84 and 130,892.81

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Solution

The fourth proportional to 218,130.27, 300,896.84 and 130,892.81 is: 180,558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,130.27 : 300,896.84 = 130,892.81 : x
  2. Step 2: Convert to fraction form
    218,130.27/300,896.84 = 130,892.81/x
  3. Step 3: Cross multiply
    218,130.27x = 300,896.84 × 130,892.81
  4. Step 4: Simplify right side
    218,130.27x = 39,385,232,673.37
  5. Step 5: Solve for x
    x = 39,385,232,673.37/218,130.27
  6. Step 6: Final answer
    x = 180,558.31

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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.