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Finding the Fourth Proportional to 447,430.40, 670,915.20 and 166,803.20

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Solution

The fourth proportional to 447,430.40, 670,915.20 and 166,803.20 is: 250,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,430.40 : 670,915.20 = 166,803.20 : x
  2. Step 2: Convert to fraction form
    447,430.40/670,915.20 = 166,803.20/x
  3. Step 3: Cross multiply
    447,430.40x = 670,915.20 × 166,803.20
  4. Step 4: Simplify right side
    447,430.40x = 111,910,802,288.64
  5. Step 5: Solve for x
    x = 111,910,802,288.64/447,430.40
  6. Step 6: Final answer
    x = 250,118.91

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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.