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Finding the Fourth Proportional to 162,402.60, 243,258.30 and 131,298.60

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Solution

The fourth proportional to 162,402.60, 243,258.30 and 131,298.60 is: 196,668.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,402.60 : 243,258.30 = 131,298.60 : x
  2. Step 2: Convert to fraction form
    162,402.60/243,258.30 = 131,298.60/x
  3. Step 3: Cross multiply
    162,402.60x = 243,258.30 × 131,298.60
  4. Step 4: Simplify right side
    162,402.60x = 31,939,474,228.38
  5. Step 5: Solve for x
    x = 31,939,474,228.38/162,402.60
  6. Step 6: Final answer
    x = 196,668.49

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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.