Home / 441,621.80-662,543.10-142,130.60

Finding the Fourth Proportional to 441,621.80, 662,543.10 and 142,130.60

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Solution

The fourth proportional to 441,621.80, 662,543.10 and 142,130.60 is: 213,231.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,621.80 : 662,543.10 = 142,130.60 : x
  2. Step 2: Convert to fraction form
    441,621.80/662,543.10 = 142,130.60/x
  3. Step 3: Cross multiply
    441,621.80x = 662,543.10 × 142,130.60
  4. Step 4: Simplify right side
    441,621.80x = 94,167,648,328.86
  5. Step 5: Solve for x
    x = 94,167,648,328.86/441,621.80
  6. Step 6: Final answer
    x = 213,231.43

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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.