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Finding the Fourth Proportional to 440,158.80, 660,432.60 and 203,379.60

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Solution

The fourth proportional to 440,158.80, 660,432.60 and 203,379.60 is: 305,159.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,158.80 : 660,432.60 = 203,379.60 : x
  2. Step 2: Convert to fraction form
    440,158.80/660,432.60 = 203,379.60/x
  3. Step 3: Cross multiply
    440,158.80x = 660,432.60 × 203,379.60
  4. Step 4: Simplify right side
    440,158.80x = 134,318,518,014.96
  5. Step 5: Solve for x
    x = 134,318,518,014.96/440,158.80
  6. Step 6: Final answer
    x = 305,159.22

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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.