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Finding the Fourth Proportional to 508,390.35, 762,605.28 and 153,404.37

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Solution

The fourth proportional to 508,390.35, 762,605.28 and 153,404.37 is: 230,112.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,390.35 : 762,605.28 = 153,404.37 : x
  2. Step 2: Convert to fraction form
    508,390.35/762,605.28 = 153,404.37/x
  3. Step 3: Cross multiply
    508,390.35x = 762,605.28 × 153,404.37
  4. Step 4: Simplify right side
    508,390.35x = 116,986,982,537.07
  5. Step 5: Solve for x
    x = 116,986,982,537.07/508,390.35
  6. Step 6: Final answer
    x = 230,112.52

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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.