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Finding the Fourth Proportional to 443,367.20, 665,050.80 and 256,282.40

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Solution

The fourth proportional to 443,367.20, 665,050.80 and 256,282.40 is: 384,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,367.20 : 665,050.80 = 256,282.40 : x
  2. Step 2: Convert to fraction form
    443,367.20/665,050.80 = 256,282.40/x
  3. Step 3: Cross multiply
    443,367.20x = 665,050.80 × 256,282.40
  4. Step 4: Simplify right side
    443,367.20x = 170,440,815,145.92
  5. Step 5: Solve for x
    x = 170,440,815,145.92/443,367.20
  6. Step 6: Final answer
    x = 384,423.60

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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.