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Finding the Fourth Proportional to 243,516.60, 336,051.92 and 136,086.60

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Solution

The fourth proportional to 243,516.60, 336,051.92 and 136,086.60 is: 187,798.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,516.60 : 336,051.92 = 136,086.60 : x
  2. Step 2: Convert to fraction form
    243,516.60/336,051.92 = 136,086.60/x
  3. Step 3: Cross multiply
    243,516.60x = 336,051.92 × 136,086.60
  4. Step 4: Simplify right side
    243,516.60x = 45,732,163,216.27
  5. Step 5: Solve for x
    x = 45,732,163,216.27/243,516.60
  6. Step 6: Final answer
    x = 187,798.96

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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.