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Finding the Fourth Proportional to 445,858.70, 615,284.96 and 254,876.36

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Solution

The fourth proportional to 445,858.70, 615,284.96 and 254,876.36 is: 351,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,858.70 : 615,284.96 = 254,876.36 : x
  2. Step 2: Convert to fraction form
    445,858.70/615,284.96 = 254,876.36/x
  3. Step 3: Cross multiply
    445,858.70x = 615,284.96 × 254,876.36
  4. Step 4: Simplify right side
    445,858.70x = 156,821,590,967.55
  5. Step 5: Solve for x
    x = 156,821,590,967.55/445,858.70
  6. Step 6: Final answer
    x = 351,729.35

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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.