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Finding the Fourth Proportional to 243,069.30, 335,300.85 and 142,447.86

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Solution

The fourth proportional to 243,069.30, 335,300.85 and 142,447.86 is: 196,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,069.30 : 335,300.85 = 142,447.86 : x
  2. Step 2: Convert to fraction form
    243,069.30/335,300.85 = 142,447.86/x
  3. Step 3: Cross multiply
    243,069.30x = 335,300.85 × 142,447.86
  4. Step 4: Simplify right side
    243,069.30x = 47,762,888,538.68
  5. Step 5: Solve for x
    x = 47,762,888,538.68/243,069.30
  6. Step 6: Final answer
    x = 196,499.06

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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.