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Finding the Fourth Proportional to 155,349, 232,522.28 and 80,365.88

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Solution

The fourth proportional to 155,349, 232,522.28 and 80,365.88 is: 120,289.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,349 : 232,522.28 = 80,365.88 : x
  2. Step 2: Convert to fraction form
    155,349/232,522.28 = 80,365.88/x
  3. Step 3: Cross multiply
    155,349x = 232,522.28 × 80,365.88
  4. Step 4: Simplify right side
    155,349x = 18,686,857,651.81
  5. Step 5: Solve for x
    x = 18,686,857,651.81/155,349
  6. Step 6: Final answer
    x = 120,289.53

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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.