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Finding the Fourth Proportional to 202,289.70, 303,434.55 and 69,174.30

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Solution

The fourth proportional to 202,289.70, 303,434.55 and 69,174.30 is: 103,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,289.70 : 303,434.55 = 69,174.30 : x
  2. Step 2: Convert to fraction form
    202,289.70/303,434.55 = 69,174.30/x
  3. Step 3: Cross multiply
    202,289.70x = 303,434.55 × 69,174.30
  4. Step 4: Simplify right side
    202,289.70x = 20,989,872,592.07
  5. Step 5: Solve for x
    x = 20,989,872,592.07/202,289.70
  6. Step 6: Final answer
    x = 103,761.45

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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.