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Finding the Fourth Proportional to 441,043.60, 660,835.80 and 253,728.40

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Solution

The fourth proportional to 441,043.60, 660,835.80 and 253,728.40 is: 380,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,043.60 : 660,835.80 = 253,728.40 : x
  2. Step 2: Convert to fraction form
    441,043.60/660,835.80 = 253,728.40/x
  3. Step 3: Cross multiply
    441,043.60x = 660,835.80 × 253,728.40
  4. Step 4: Simplify right side
    441,043.60x = 167,672,810,196.72
  5. Step 5: Solve for x
    x = 167,672,810,196.72/441,043.60
  6. Step 6: Final answer
    x = 380,172.87

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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.