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Finding the Fourth Proportional to 243,366.55, 365,278.86 and 123,509.59

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Solution

The fourth proportional to 243,366.55, 365,278.86 and 123,509.59 is: 185,380.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,366.55 : 365,278.86 = 123,509.59 : x
  2. Step 2: Convert to fraction form
    243,366.55/365,278.86 = 123,509.59/x
  3. Step 3: Cross multiply
    243,366.55x = 365,278.86 × 123,509.59
  4. Step 4: Simplify right side
    243,366.55x = 45,115,441,321.07
  5. Step 5: Solve for x
    x = 45,115,441,321.07/243,366.55
  6. Step 6: Final answer
    x = 185,380.62

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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.