Home / 441,421.20-662,131.80-145,933.20

Finding the Fourth Proportional to 441,421.20, 662,131.80 and 145,933.20

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Solution

The fourth proportional to 441,421.20, 662,131.80 and 145,933.20 is: 218,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,421.20 : 662,131.80 = 145,933.20 : x
  2. Step 2: Convert to fraction form
    441,421.20/662,131.80 = 145,933.20/x
  3. Step 3: Cross multiply
    441,421.20x = 662,131.80 × 145,933.20
  4. Step 4: Simplify right side
    441,421.20x = 96,627,012,395.76
  5. Step 5: Solve for x
    x = 96,627,012,395.76/441,421.20
  6. Step 6: Final answer
    x = 218,899.80

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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.