Home / 500,176.13-690,243.09-273,821.63

Finding the Fourth Proportional to 500,176.13, 690,243.09 and 273,821.63

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Solution

The fourth proportional to 500,176.13, 690,243.09 and 273,821.63 is: 377,873.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,176.13 : 690,243.09 = 273,821.63 : x
  2. Step 2: Convert to fraction form
    500,176.13/690,243.09 = 273,821.63/x
  3. Step 3: Cross multiply
    500,176.13x = 690,243.09 × 273,821.63
  4. Step 4: Simplify right side
    500,176.13x = 189,003,484,548.82
  5. Step 5: Solve for x
    x = 189,003,484,548.82/500,176.13
  6. Step 6: Final answer
    x = 377,873.86

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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.