Home / 218,322.10-326,827.05-129,529.90

Finding the Fourth Proportional to 218,322.10, 326,827.05 and 129,529.90

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Solution

The fourth proportional to 218,322.10, 326,827.05 and 129,529.90 is: 193,905.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,322.10 : 326,827.05 = 129,529.90 : x
  2. Step 2: Convert to fraction form
    218,322.10/326,827.05 = 129,529.90/x
  3. Step 3: Cross multiply
    218,322.10x = 326,827.05 × 129,529.90
  4. Step 4: Simplify right side
    218,322.10x = 42,333,875,103.80
  5. Step 5: Solve for x
    x = 42,333,875,103.80/218,322.10
  6. Step 6: Final answer
    x = 193,905.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.