Home / 455,338.20-628,363.32-251,389.08

Finding the Fourth Proportional to 455,338.20, 628,363.32 and 251,389.08

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Solution

The fourth proportional to 455,338.20, 628,363.32 and 251,389.08 is: 346,915.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,338.20 : 628,363.32 = 251,389.08 : x
  2. Step 2: Convert to fraction form
    455,338.20/628,363.32 = 251,389.08/x
  3. Step 3: Cross multiply
    455,338.20x = 628,363.32 × 251,389.08
  4. Step 4: Simplify right side
    455,338.20x = 157,963,676,920.55
  5. Step 5: Solve for x
    x = 157,963,676,920.55/455,338.20
  6. Step 6: Final answer
    x = 346,915.06

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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.