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Finding the Fourth Proportional to 225,095.87, 310,642.25 and 129,633.32

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Solution

The fourth proportional to 225,095.87, 310,642.25 and 129,633.32 is: 178,899.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,095.87 : 310,642.25 = 129,633.32 : x
  2. Step 2: Convert to fraction form
    225,095.87/310,642.25 = 129,633.32/x
  3. Step 3: Cross multiply
    225,095.87x = 310,642.25 × 129,633.32
  4. Step 4: Simplify right side
    225,095.87x = 40,269,586,199.77
  5. Step 5: Solve for x
    x = 40,269,586,199.77/225,095.87
  6. Step 6: Final answer
    x = 178,899.71

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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.