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Finding the Fourth Proportional to 540,310.32, 810,465.92 and 140,950.64

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Solution

The fourth proportional to 540,310.32, 810,465.92 and 140,950.64 is: 211,426.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,310.32 : 810,465.92 = 140,950.64 : x
  2. Step 2: Convert to fraction form
    540,310.32/810,465.92 = 140,950.64/x
  3. Step 3: Cross multiply
    540,310.32x = 810,465.92 × 140,950.64
  4. Step 4: Simplify right side
    540,310.32x = 114,235,690,122.19
  5. Step 5: Solve for x
    x = 114,235,690,122.19/540,310.32
  6. Step 6: Final answer
    x = 211,426.07

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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.