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Finding the Fourth Proportional to 329,980.13, 455,372.58 and 179,077.13

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Solution

The fourth proportional to 329,980.13, 455,372.58 and 179,077.13 is: 247,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,980.13 : 455,372.58 = 179,077.13 : x
  2. Step 2: Convert to fraction form
    329,980.13/455,372.58 = 179,077.13/x
  3. Step 3: Cross multiply
    329,980.13x = 455,372.58 × 179,077.13
  4. Step 4: Simplify right side
    329,980.13x = 81,546,814,707.10
  5. Step 5: Solve for x
    x = 81,546,814,707.10/329,980.13
  6. Step 6: Final answer
    x = 247,126.44

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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.