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Finding the Fourth Proportional to 400,278.90, 600,366.51 and 150,928.50

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Solution

The fourth proportional to 400,278.90, 600,366.51 and 150,928.50 is: 226,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,278.90 : 600,366.51 = 150,928.50 : x
  2. Step 2: Convert to fraction form
    400,278.90/600,366.51 = 150,928.50/x
  3. Step 3: Cross multiply
    400,278.90x = 600,366.51 × 150,928.50
  4. Step 4: Simplify right side
    400,278.90x = 90,612,416,804.54
  5. Step 5: Solve for x
    x = 90,612,416,804.54/400,278.90
  6. Step 6: Final answer
    x = 226,373.20

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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.