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Finding the Fourth Proportional to 162,507.60, 243,286.20 and 115,851.60

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Solution

The fourth proportional to 162,507.60, 243,286.20 and 115,851.60 is: 173,438.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,507.60 : 243,286.20 = 115,851.60 : x
  2. Step 2: Convert to fraction form
    162,507.60/243,286.20 = 115,851.60/x
  3. Step 3: Cross multiply
    162,507.60x = 243,286.20 × 115,851.60
  4. Step 4: Simplify right side
    162,507.60x = 28,185,095,527.92
  5. Step 5: Solve for x
    x = 28,185,095,527.92/162,507.60
  6. Step 6: Final answer
    x = 173,438.63

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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.