Home / 218,536.86-301,590.17-121,740.60

Finding the Fourth Proportional to 218,536.86, 301,590.17 and 121,740.60

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Solution

The fourth proportional to 218,536.86, 301,590.17 and 121,740.60 is: 168,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,536.86 : 301,590.17 = 121,740.60 : x
  2. Step 2: Convert to fraction form
    218,536.86/301,590.17 = 121,740.60/x
  3. Step 3: Cross multiply
    218,536.86x = 301,590.17 × 121,740.60
  4. Step 4: Simplify right side
    218,536.86x = 36,715,767,641.20
  5. Step 5: Solve for x
    x = 36,715,767,641.20/218,536.86
  6. Step 6: Final answer
    x = 168,007.21

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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.