Home / 335,666.12-503,500.50-135,990.28

Finding the Fourth Proportional to 335,666.12, 503,500.50 and 135,990.28

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Solution

The fourth proportional to 335,666.12, 503,500.50 and 135,990.28 is: 203,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,666.12 : 503,500.50 = 135,990.28 : x
  2. Step 2: Convert to fraction form
    335,666.12/503,500.50 = 135,990.28/x
  3. Step 3: Cross multiply
    335,666.12x = 503,500.50 × 135,990.28
  4. Step 4: Simplify right side
    335,666.12x = 68,471,173,975.14
  5. Step 5: Solve for x
    x = 68,471,173,975.14/335,666.12
  6. Step 6: Final answer
    x = 203,985.95

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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.