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Finding the Fourth Proportional to 297,005.60, 445,216.80 and 265,512.80

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Solution

The fourth proportional to 297,005.60, 445,216.80 and 265,512.80 is: 398,008.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,005.60 : 445,216.80 = 265,512.80 : x
  2. Step 2: Convert to fraction form
    297,005.60/445,216.80 = 265,512.80/x
  3. Step 3: Cross multiply
    297,005.60x = 445,216.80 × 265,512.80
  4. Step 4: Simplify right side
    297,005.60x = 118,210,759,175.04
  5. Step 5: Solve for x
    x = 118,210,759,175.04/297,005.60
  6. Step 6: Final answer
    x = 398,008.52

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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.