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Finding the Fourth Proportional to 383,422.60, 575,133.90 and 102,968.20

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Solution

The fourth proportional to 383,422.60, 575,133.90 and 102,968.20 is: 154,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,422.60 : 575,133.90 = 102,968.20 : x
  2. Step 2: Convert to fraction form
    383,422.60/575,133.90 = 102,968.20/x
  3. Step 3: Cross multiply
    383,422.60x = 575,133.90 × 102,968.20
  4. Step 4: Simplify right side
    383,422.60x = 59,220,502,441.98
  5. Step 5: Solve for x
    x = 59,220,502,441.98/383,422.60
  6. Step 6: Final answer
    x = 154,452.30

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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.