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Finding the Fourth Proportional to 400,017.72, 599,937.60 and 115,646.16

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Solution

The fourth proportional to 400,017.72, 599,937.60 and 115,646.16 is: 173,443.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,017.72 : 599,937.60 = 115,646.16 : x
  2. Step 2: Convert to fraction form
    400,017.72/599,937.60 = 115,646.16/x
  3. Step 3: Cross multiply
    400,017.72x = 599,937.60 × 115,646.16
  4. Step 4: Simplify right side
    400,017.72x = 69,380,479,679.62
  5. Step 5: Solve for x
    x = 69,380,479,679.62/400,017.72
  6. Step 6: Final answer
    x = 173,443.52

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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.