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Finding the Fourth Proportional to 362,380.53, 499,941.72 and 209,390.54

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Solution

The fourth proportional to 362,380.53, 499,941.72 and 209,390.54 is: 288,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,380.53 : 499,941.72 = 209,390.54 : x
  2. Step 2: Convert to fraction form
    362,380.53/499,941.72 = 209,390.54/x
  3. Step 3: Cross multiply
    362,380.53x = 499,941.72 × 209,390.54
  4. Step 4: Simplify right side
    362,380.53x = 104,683,064,219.62
  5. Step 5: Solve for x
    x = 104,683,064,219.62/362,380.53
  6. Step 6: Final answer
    x = 288,876.07

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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.