Home / 218,865.06-302,147.96-155,354.58

Finding the Fourth Proportional to 218,865.06, 302,147.96 and 155,354.58

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Solution

The fourth proportional to 218,865.06, 302,147.96 and 155,354.58 is: 214,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,865.06 : 302,147.96 = 155,354.58 : x
  2. Step 2: Convert to fraction form
    218,865.06/302,147.96 = 155,354.58/x
  3. Step 3: Cross multiply
    218,865.06x = 302,147.96 × 155,354.58
  4. Step 4: Simplify right side
    218,865.06x = 46,940,068,646.88
  5. Step 5: Solve for x
    x = 46,940,068,646.88/218,865.06
  6. Step 6: Final answer
    x = 214,470.36

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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.