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Finding the Fourth Proportional to 360,934.80, 540,235.80 and 281,619.60

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Solution

The fourth proportional to 360,934.80, 540,235.80 and 281,619.60 is: 421,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,934.80 : 540,235.80 = 281,619.60 : x
  2. Step 2: Convert to fraction form
    360,934.80/540,235.80 = 281,619.60/x
  3. Step 3: Cross multiply
    360,934.80x = 540,235.80 × 281,619.60
  4. Step 4: Simplify right side
    360,934.80x = 152,140,989,901.68
  5. Step 5: Solve for x
    x = 152,140,989,901.68/360,934.80
  6. Step 6: Final answer
    x = 421,519.32

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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.