Home / 331,332.10-496,998.15-121,120.90

Finding the Fourth Proportional to 331,332.10, 496,998.15 and 121,120.90

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Solution

The fourth proportional to 331,332.10, 496,998.15 and 121,120.90 is: 181,681.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,332.10 : 496,998.15 = 121,120.90 : x
  2. Step 2: Convert to fraction form
    331,332.10/496,998.15 = 121,120.90/x
  3. Step 3: Cross multiply
    331,332.10x = 496,998.15 × 121,120.90
  4. Step 4: Simplify right side
    331,332.10x = 60,196,863,226.34
  5. Step 5: Solve for x
    x = 60,196,863,226.34/331,332.10
  6. Step 6: Final answer
    x = 181,681.35

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Double scale
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Similar ratio
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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.