Home / 200,538.02-300,845-80,604.32

Finding the Fourth Proportional to 200,538.02, 300,845 and 80,604.32

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Solution

The fourth proportional to 200,538.02, 300,845 and 80,604.32 is: 120,921.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,538.02 : 300,845 = 80,604.32 : x
  2. Step 2: Convert to fraction form
    200,538.02/300,845 = 80,604.32/x
  3. Step 3: Cross multiply
    200,538.02x = 300,845 × 80,604.32
  4. Step 4: Simplify right side
    200,538.02x = 24,249,406,650.40
  5. Step 5: Solve for x
    x = 24,249,406,650.40/200,538.02
  6. Step 6: Final answer
    x = 120,921.74

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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.