Home / 218,203.15-301,093.91-121,384.13

Finding the Fourth Proportional to 218,203.15, 301,093.91 and 121,384.13

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Solution

The fourth proportional to 218,203.15, 301,093.91 and 121,384.13 is: 167,495.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,203.15 : 301,093.91 = 121,384.13 : x
  2. Step 2: Convert to fraction form
    218,203.15/301,093.91 = 121,384.13/x
  3. Step 3: Cross multiply
    218,203.15x = 301,093.91 × 121,384.13
  4. Step 4: Simplify right side
    218,203.15x = 36,548,021,330.36
  5. Step 5: Solve for x
    x = 36,548,021,330.36/218,203.15
  6. Step 6: Final answer
    x = 167,495.39

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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.