Home / 223,265.04-308,104.53-121,289.70

Finding the Fourth Proportional to 223,265.04, 308,104.53 and 121,289.70

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Solution

The fourth proportional to 223,265.04, 308,104.53 and 121,289.70 is: 167,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,265.04 : 308,104.53 = 121,289.70 : x
  2. Step 2: Convert to fraction form
    223,265.04/308,104.53 = 121,289.70/x
  3. Step 3: Cross multiply
    223,265.04x = 308,104.53 × 121,289.70
  4. Step 4: Simplify right side
    223,265.04x = 37,369,906,012.34
  5. Step 5: Solve for x
    x = 37,369,906,012.34/223,265.04
  6. Step 6: Final answer
    x = 167,379.12

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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.