Home / 455,283.02-628,286.72-251,329.57

Finding the Fourth Proportional to 455,283.02, 628,286.72 and 251,329.57

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Solution

The fourth proportional to 455,283.02, 628,286.72 and 251,329.57 is: 346,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,283.02 : 628,286.72 = 251,329.57 : x
  2. Step 2: Convert to fraction form
    455,283.02/628,286.72 = 251,329.57/x
  3. Step 3: Cross multiply
    455,283.02x = 628,286.72 × 251,329.57
  4. Step 4: Simplify right side
    455,283.02x = 157,907,028,346.95
  5. Step 5: Solve for x
    x = 157,907,028,346.95/455,283.02
  6. Step 6: Final answer
    x = 346,832.67

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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.