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Finding the Fourth Proportional to 360,674.22, 498,153.90 and 288,327.66

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Solution

The fourth proportional to 360,674.22, 498,153.90 and 288,327.66 is: 398,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,674.22 : 498,153.90 = 288,327.66 : x
  2. Step 2: Convert to fraction form
    360,674.22/498,153.90 = 288,327.66/x
  3. Step 3: Cross multiply
    360,674.22x = 498,153.90 × 288,327.66
  4. Step 4: Simplify right side
    360,674.22x = 143,631,548,306.87
  5. Step 5: Solve for x
    x = 143,631,548,306.87/360,674.22
  6. Step 6: Final answer
    x = 398,230.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.