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Finding the Fourth Proportional to 340,382.08, 510,628.53 and 100,520.23

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Solution

The fourth proportional to 340,382.08, 510,628.53 and 100,520.23 is: 150,796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,382.08 : 510,628.53 = 100,520.23 : x
  2. Step 2: Convert to fraction form
    340,382.08/510,628.53 = 100,520.23/x
  3. Step 3: Cross multiply
    340,382.08x = 510,628.53 × 100,520.23
  4. Step 4: Simplify right side
    340,382.08x = 51,328,497,280.16
  5. Step 5: Solve for x
    x = 51,328,497,280.16/340,382.08
  6. Step 6: Final answer
    x = 150,796.71

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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.