Home / 418,221.90-626,980.19-181,386.20

Finding the Fourth Proportional to 418,221.90, 626,980.19 and 181,386.20

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Solution

The fourth proportional to 418,221.90, 626,980.19 and 181,386.20 is: 271,926.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,221.90 : 626,980.19 = 181,386.20 : x
  2. Step 2: Convert to fraction form
    418,221.90/626,980.19 = 181,386.20/x
  3. Step 3: Cross multiply
    418,221.90x = 626,980.19 × 181,386.20
  4. Step 4: Simplify right side
    418,221.90x = 113,725,550,097.55
  5. Step 5: Solve for x
    x = 113,725,550,097.55/418,221.90
  6. Step 6: Final answer
    x = 271,926.34

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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.