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Finding the Fourth Proportional to 508,090.97, 762,039.18 and 255,301.45

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Solution

The fourth proportional to 508,090.97, 762,039.18 and 255,301.45 is: 382,903.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,090.97 : 762,039.18 = 255,301.45 : x
  2. Step 2: Convert to fraction form
    508,090.97/762,039.18 = 255,301.45/x
  3. Step 3: Cross multiply
    508,090.97x = 762,039.18 × 255,301.45
  4. Step 4: Simplify right side
    508,090.97x = 194,549,703,800.62
  5. Step 5: Solve for x
    x = 194,549,703,800.62/508,090.97
  6. Step 6: Final answer
    x = 382,903.29

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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.