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Finding the Fourth Proportional to 162,620.80, 243,931.20 and 161,065.60

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Solution

The fourth proportional to 162,620.80, 243,931.20 and 161,065.60 is: 241,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,620.80 : 243,931.20 = 161,065.60 : x
  2. Step 2: Convert to fraction form
    162,620.80/243,931.20 = 161,065.60/x
  3. Step 3: Cross multiply
    162,620.80x = 243,931.20 × 161,065.60
  4. Step 4: Simplify right side
    162,620.80x = 39,288,925,086.72
  5. Step 5: Solve for x
    x = 39,288,925,086.72/162,620.80
  6. Step 6: Final answer
    x = 241,598.40

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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.