Home / 218,303.64-327,495.06-90,220.14

Finding the Fourth Proportional to 218,303.64, 327,495.06 and 90,220.14

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Solution

The fourth proportional to 218,303.64, 327,495.06 and 90,220.14 is: 135,346.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,303.64 : 327,495.06 = 90,220.14 : x
  2. Step 2: Convert to fraction form
    218,303.64/327,495.06 = 90,220.14/x
  3. Step 3: Cross multiply
    218,303.64x = 327,495.06 × 90,220.14
  4. Step 4: Simplify right side
    218,303.64x = 29,546,650,162.51
  5. Step 5: Solve for x
    x = 29,546,650,162.51/218,303.64
  6. Step 6: Final answer
    x = 135,346.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.