Home / 455,118.35-628,069.95-251,178.77

Finding the Fourth Proportional to 455,118.35, 628,069.95 and 251,178.77

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Solution

The fourth proportional to 455,118.35, 628,069.95 and 251,178.77 is: 346,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,118.35 : 628,069.95 = 251,178.77 : x
  2. Step 2: Convert to fraction form
    455,118.35/628,069.95 = 251,178.77/x
  3. Step 3: Cross multiply
    455,118.35x = 628,069.95 × 251,178.77
  4. Step 4: Simplify right side
    455,118.35x = 157,757,839,085.14
  5. Step 5: Solve for x
    x = 157,757,839,085.14/455,118.35
  6. Step 6: Final answer
    x = 346,630.37

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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.