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Finding the Fourth Proportional to 500,164.37, 690,226.74 and 270,721.59

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Solution

The fourth proportional to 500,164.37, 690,226.74 and 270,721.59 is: 373,595.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,164.37 : 690,226.74 = 270,721.59 : x
  2. Step 2: Convert to fraction form
    500,164.37/690,226.74 = 270,721.59/x
  3. Step 3: Cross multiply
    500,164.37x = 690,226.74 × 270,721.59
  4. Step 4: Simplify right side
    500,164.37x = 186,859,280,513.32
  5. Step 5: Solve for x
    x = 186,859,280,513.32/500,164.37
  6. Step 6: Final answer
    x = 373,595.75

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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.