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Finding the Fourth Proportional to 508,936.20, 762,918.30 and 189,002.40

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Solution

The fourth proportional to 508,936.20, 762,918.30 and 189,002.40 is: 283,323.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,936.20 : 762,918.30 = 189,002.40 : x
  2. Step 2: Convert to fraction form
    508,936.20/762,918.30 = 189,002.40/x
  3. Step 3: Cross multiply
    508,936.20x = 762,918.30 × 189,002.40
  4. Step 4: Simplify right side
    508,936.20x = 144,193,389,703.92
  5. Step 5: Solve for x
    x = 144,193,389,703.92/508,936.20
  6. Step 6: Final answer
    x = 283,323.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.