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Finding the Fourth Proportional to 304,407.60, 420,033.42 and 191,150.16

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Solution

The fourth proportional to 304,407.60, 420,033.42 and 191,150.16 is: 263,756.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,407.60 : 420,033.42 = 191,150.16 : x
  2. Step 2: Convert to fraction form
    304,407.60/420,033.42 = 191,150.16/x
  3. Step 3: Cross multiply
    304,407.60x = 420,033.42 × 191,150.16
  4. Step 4: Simplify right side
    304,407.60x = 80,289,455,438.35
  5. Step 5: Solve for x
    x = 80,289,455,438.35/304,407.60
  6. Step 6: Final answer
    x = 263,756.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.