Home / 500,133.18-690,188.40-296,195.70

Finding the Fourth Proportional to 500,133.18, 690,188.40 and 296,195.70

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Solution

The fourth proportional to 500,133.18, 690,188.40 and 296,195.70 is: 408,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,133.18 : 690,188.40 = 296,195.70 : x
  2. Step 2: Convert to fraction form
    500,133.18/690,188.40 = 296,195.70/x
  3. Step 3: Cross multiply
    500,133.18x = 690,188.40 × 296,195.70
  4. Step 4: Simplify right side
    500,133.18x = 204,430,836,269.88
  5. Step 5: Solve for x
    x = 204,430,836,269.88/500,133.18
  6. Step 6: Final answer
    x = 408,752.80

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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.