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Finding the Fourth Proportional to 500,210.51, 690,290.51 and 273,856.01

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Solution

The fourth proportional to 500,210.51, 690,290.51 and 273,856.01 is: 377,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,210.51 : 690,290.51 = 273,856.01 : x
  2. Step 2: Convert to fraction form
    500,210.51/690,290.51 = 273,856.01/x
  3. Step 3: Cross multiply
    500,210.51x = 690,290.51 × 273,856.01
  4. Step 4: Simplify right side
    500,210.51x = 189,040,199,988.73
  5. Step 5: Solve for x
    x = 189,040,199,988.73/500,210.51
  6. Step 6: Final answer
    x = 377,921.29

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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.