Home / 215,395.08-297,273.12-123,550.20

Finding the Fourth Proportional to 215,395.08, 297,273.12 and 123,550.20

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Solution

The fourth proportional to 215,395.08, 297,273.12 and 123,550.20 is: 170,515.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,395.08 : 297,273.12 = 123,550.20 : x
  2. Step 2: Convert to fraction form
    215,395.08/297,273.12 = 123,550.20/x
  3. Step 3: Cross multiply
    215,395.08x = 297,273.12 × 123,550.20
  4. Step 4: Simplify right side
    215,395.08x = 36,728,153,430.62
  5. Step 5: Solve for x
    x = 36,728,153,430.62/215,395.08
  6. Step 6: Final answer
    x = 170,515.28

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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.