Home / 418,221.21-626,979.15-181,385.51

Finding the Fourth Proportional to 418,221.21, 626,979.15 and 181,385.51

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Solution

The fourth proportional to 418,221.21, 626,979.15 and 181,385.51 is: 271,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,221.21 : 626,979.15 = 181,385.51 : x
  2. Step 2: Convert to fraction form
    418,221.21/626,979.15 = 181,385.51/x
  3. Step 3: Cross multiply
    418,221.21x = 626,979.15 × 181,385.51
  4. Step 4: Simplify right side
    418,221.21x = 113,724,929,747.22
  5. Step 5: Solve for x
    x = 113,724,929,747.22/418,221.21
  6. Step 6: Final answer
    x = 271,925.30

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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.