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Finding the Fourth Proportional to 100,275.80, 150,380.90 and 46,951.28

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Solution

The fourth proportional to 100,275.80, 150,380.90 and 46,951.28 is: 70,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,275.80 : 150,380.90 = 46,951.28 : x
  2. Step 2: Convert to fraction form
    100,275.80/150,380.90 = 46,951.28/x
  3. Step 3: Cross multiply
    100,275.80x = 150,380.90 × 46,951.28
  4. Step 4: Simplify right side
    100,275.80x = 7,060,574,755.89
  5. Step 5: Solve for x
    x = 7,060,574,755.89/100,275.80
  6. Step 6: Final answer
    x = 70,411.55

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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.