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Finding the Fourth Proportional to 253,781.24, 380,256.56 and 153,637.90

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Solution

The fourth proportional to 253,781.24, 380,256.56 and 153,637.90 is: 230,205.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,781.24 : 380,256.56 = 153,637.90 : x
  2. Step 2: Convert to fraction form
    253,781.24/380,256.56 = 153,637.90/x
  3. Step 3: Cross multiply
    253,781.24x = 380,256.56 × 153,637.90
  4. Step 4: Simplify right side
    253,781.24x = 58,421,819,339.62
  5. Step 5: Solve for x
    x = 58,421,819,339.62/253,781.24
  6. Step 6: Final answer
    x = 230,205.43

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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.