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Finding the Fourth Proportional to 360,922.80, 540,217.80 and 281,607.60

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Solution

The fourth proportional to 360,922.80, 540,217.80 and 281,607.60 is: 421,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,922.80 : 540,217.80 = 281,607.60 : x
  2. Step 2: Convert to fraction form
    360,922.80/540,217.80 = 281,607.60/x
  3. Step 3: Cross multiply
    360,922.80x = 540,217.80 × 281,607.60
  4. Step 4: Simplify right side
    360,922.80x = 152,129,438,135.28
  5. Step 5: Solve for x
    x = 152,129,438,135.28/360,922.80
  6. Step 6: Final answer
    x = 421,501.32

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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.