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Finding the Fourth Proportional to 455,300.88, 681,298.68 and 329,193.60

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Solution

The fourth proportional to 455,300.88, 681,298.68 and 329,193.60 is: 492,595.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,300.88 : 681,298.68 = 329,193.60 : x
  2. Step 2: Convert to fraction form
    455,300.88/681,298.68 = 329,193.60/x
  3. Step 3: Cross multiply
    455,300.88x = 681,298.68 × 329,193.60
  4. Step 4: Simplify right side
    455,300.88x = 224,279,165,144.45
  5. Step 5: Solve for x
    x = 224,279,165,144.45/455,300.88
  6. Step 6: Final answer
    x = 492,595.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.