Home / 218,204.48-301,109.28-121,405.76

Finding the Fourth Proportional to 218,204.48, 301,109.28 and 121,405.76

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Solution

The fourth proportional to 218,204.48, 301,109.28 and 121,405.76 is: 167,532.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,204.48 : 301,109.28 = 121,405.76 : x
  2. Step 2: Convert to fraction form
    218,204.48/301,109.28 = 121,405.76/x
  3. Step 3: Cross multiply
    218,204.48x = 301,109.28 × 121,405.76
  4. Step 4: Simplify right side
    218,204.48x = 36,556,400,981.45
  5. Step 5: Solve for x
    x = 36,556,400,981.45/218,204.48
  6. Step 6: Final answer
    x = 167,532.77

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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.