Home / 218,581.08-301,781.40-178,390.86

Finding the Fourth Proportional to 218,581.08, 301,781.40 and 178,390.86

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Solution

The fourth proportional to 218,581.08, 301,781.40 and 178,390.86 is: 246,293.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,581.08 : 301,781.40 = 178,390.86 : x
  2. Step 2: Convert to fraction form
    218,581.08/301,781.40 = 178,390.86/x
  3. Step 3: Cross multiply
    218,581.08x = 301,781.40 × 178,390.86
  4. Step 4: Simplify right side
    218,581.08x = 53,835,041,677.36
  5. Step 5: Solve for x
    x = 53,835,041,677.36/218,581.08
  6. Step 6: Final answer
    x = 246,293.23

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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.