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Finding the Fourth Proportional to 155,212.80, 232,921.60 and 56,716.80

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Solution

The fourth proportional to 155,212.80, 232,921.60 and 56,716.80 is: 85,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,212.80 : 232,921.60 = 56,716.80 : x
  2. Step 2: Convert to fraction form
    155,212.80/232,921.60 = 56,716.80/x
  3. Step 3: Cross multiply
    155,212.80x = 232,921.60 × 56,716.80
  4. Step 4: Simplify right side
    155,212.80x = 13,210,567,802.88
  5. Step 5: Solve for x
    x = 13,210,567,802.88/155,212.80
  6. Step 6: Final answer
    x = 85,112.62

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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.