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Finding the Fourth Proportional to 162,806.60, 243,918.30 and 100,404.20

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Solution

The fourth proportional to 162,806.60, 243,918.30 and 100,404.20 is: 150,426.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,806.60 : 243,918.30 = 100,404.20 : x
  2. Step 2: Convert to fraction form
    162,806.60/243,918.30 = 100,404.20/x
  3. Step 3: Cross multiply
    162,806.60x = 243,918.30 × 100,404.20
  4. Step 4: Simplify right side
    162,806.60x = 24,490,421,776.86
  5. Step 5: Solve for x
    x = 24,490,421,776.86/162,806.60
  6. Step 6: Final answer
    x = 150,426.47

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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.