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Finding the Fourth Proportional to 500,208.52, 690,289.78 and 273,875.08

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Solution

The fourth proportional to 500,208.52, 690,289.78 and 273,875.08 is: 377,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,208.52 : 690,289.78 = 273,875.08 : x
  2. Step 2: Convert to fraction form
    500,208.52/690,289.78 = 273,875.08/x
  3. Step 3: Cross multiply
    500,208.52x = 690,289.78 × 273,875.08
  4. Step 4: Simplify right side
    500,208.52x = 189,053,168,720.68
  5. Step 5: Solve for x
    x = 189,053,168,720.68/500,208.52
  6. Step 6: Final answer
    x = 377,948.72

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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.