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Finding the Fourth Proportional to 280,550.10, 420,675.57 and 122,593.62

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Solution

The fourth proportional to 280,550.10, 420,675.57 and 122,593.62 is: 183,825.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,550.10 : 420,675.57 = 122,593.62 : x
  2. Step 2: Convert to fraction form
    280,550.10/420,675.57 = 122,593.62/x
  3. Step 3: Cross multiply
    280,550.10x = 420,675.57 × 122,593.62
  4. Step 4: Simplify right side
    280,550.10x = 51,572,140,971.86
  5. Step 5: Solve for x
    x = 51,572,140,971.86/280,550.10
  6. Step 6: Final answer
    x = 183,825.07

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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.