Home / 215,807.27-298,002.07-135,373.05

Finding the Fourth Proportional to 215,807.27, 298,002.07 and 135,373.05

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Solution

The fourth proportional to 215,807.27, 298,002.07 and 135,373.05 is: 186,932.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,807.27 : 298,002.07 = 135,373.05 : x
  2. Step 2: Convert to fraction form
    215,807.27/298,002.07 = 135,373.05/x
  3. Step 3: Cross multiply
    215,807.27x = 298,002.07 × 135,373.05
  4. Step 4: Simplify right side
    215,807.27x = 40,341,449,291.43
  5. Step 5: Solve for x
    x = 40,341,449,291.43/215,807.27
  6. Step 6: Final answer
    x = 186,932.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.