Home / 418,460.94-577,539.20-255,212.21

Finding the Fourth Proportional to 418,460.94, 577,539.20 and 255,212.21

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Solution

The fourth proportional to 418,460.94, 577,539.20 and 255,212.21 is: 352,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,460.94 : 577,539.20 = 255,212.21 : x
  2. Step 2: Convert to fraction form
    418,460.94/577,539.20 = 255,212.21/x
  3. Step 3: Cross multiply
    418,460.94x = 577,539.20 × 255,212.21
  4. Step 4: Simplify right side
    418,460.94x = 147,395,051,429.88
  5. Step 5: Solve for x
    x = 147,395,051,429.88/418,460.94
  6. Step 6: Final answer
    x = 352,231.33

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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.