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Finding the Fourth Proportional to 162,367.60, 243,551.40 and 145,260.40

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Solution

The fourth proportional to 162,367.60, 243,551.40 and 145,260.40 is: 217,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,367.60 : 243,551.40 = 145,260.40 : x
  2. Step 2: Convert to fraction form
    162,367.60/243,551.40 = 145,260.40/x
  3. Step 3: Cross multiply
    162,367.60x = 243,551.40 × 145,260.40
  4. Step 4: Simplify right side
    162,367.60x = 35,378,373,784.56
  5. Step 5: Solve for x
    x = 35,378,373,784.56/162,367.60
  6. Step 6: Final answer
    x = 217,890.60

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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.