Home / 500,255.90-690,348.41-270,807.31

Finding the Fourth Proportional to 500,255.90, 690,348.41 and 270,807.31

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Solution

The fourth proportional to 500,255.90, 690,348.41 and 270,807.31 is: 373,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,255.90 : 690,348.41 = 270,807.31 : x
  2. Step 2: Convert to fraction form
    500,255.90/690,348.41 = 270,807.31/x
  3. Step 3: Cross multiply
    500,255.90x = 690,348.41 × 270,807.31
  4. Step 4: Simplify right side
    500,255.90x = 186,951,392,423.14
  5. Step 5: Solve for x
    x = 186,951,392,423.14/500,255.90
  6. Step 6: Final answer
    x = 373,711.52

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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.