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Finding the Fourth Proportional to 240,419.90, 360,311.30 and 127,857.76

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Solution

The fourth proportional to 240,419.90, 360,311.30 and 127,857.76 is: 191,617.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,419.90 : 360,311.30 = 127,857.76 : x
  2. Step 2: Convert to fraction form
    240,419.90/360,311.30 = 127,857.76/x
  3. Step 3: Cross multiply
    240,419.90x = 360,311.30 × 127,857.76
  4. Step 4: Simplify right side
    240,419.90x = 46,068,595,720.69
  5. Step 5: Solve for x
    x = 46,068,595,720.69/240,419.90
  6. Step 6: Final answer
    x = 191,617.23

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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.