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Finding the Fourth Proportional to 161,244.80, 241,406.40 and 142,812.80

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Solution

The fourth proportional to 161,244.80, 241,406.40 and 142,812.80 is: 213,811.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,244.80 : 241,406.40 = 142,812.80 : x
  2. Step 2: Convert to fraction form
    161,244.80/241,406.40 = 142,812.80/x
  3. Step 3: Cross multiply
    161,244.80x = 241,406.40 × 142,812.80
  4. Step 4: Simplify right side
    161,244.80x = 34,475,923,921.92
  5. Step 5: Solve for x
    x = 34,475,923,921.92/161,244.80
  6. Step 6: Final answer
    x = 213,811.07

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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.