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Finding the Fourth Proportional to 289,015.60, 433,524.12 and 155,958.48

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Solution

The fourth proportional to 289,015.60, 433,524.12 and 155,958.48 is: 233,938.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,015.60 : 433,524.12 = 155,958.48 : x
  2. Step 2: Convert to fraction form
    289,015.60/433,524.12 = 155,958.48/x
  3. Step 3: Cross multiply
    289,015.60x = 433,524.12 × 155,958.48
  4. Step 4: Simplify right side
    289,015.60x = 67,611,762,798.54
  5. Step 5: Solve for x
    x = 67,611,762,798.54/289,015.60
  6. Step 6: Final answer
    x = 233,938.11

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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.