Home / 218,205.15-301,096.66-121,386.13

Finding the Fourth Proportional to 218,205.15, 301,096.66 and 121,386.13

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Solution

The fourth proportional to 218,205.15, 301,096.66 and 121,386.13 is: 167,498.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,205.15 : 301,096.66 = 121,386.13 : x
  2. Step 2: Convert to fraction form
    218,205.15/301,096.66 = 121,386.13/x
  3. Step 3: Cross multiply
    218,205.15x = 301,096.66 × 121,386.13
  4. Step 4: Simplify right side
    218,205.15x = 36,548,958,313.33
  5. Step 5: Solve for x
    x = 36,548,958,313.33/218,205.15
  6. Step 6: Final answer
    x = 167,498.15

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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.