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Finding the Fourth Proportional to 243,493.76, 335,999.53 and 136,048.88

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Solution

The fourth proportional to 243,493.76, 335,999.53 and 136,048.88 is: 187,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,493.76 : 335,999.53 = 136,048.88 : x
  2. Step 2: Convert to fraction form
    243,493.76/335,999.53 = 136,048.88/x
  3. Step 3: Cross multiply
    243,493.76x = 335,999.53 × 136,048.88
  4. Step 4: Simplify right side
    243,493.76x = 45,712,359,737.03
  5. Step 5: Solve for x
    x = 45,712,359,737.03/243,493.76
  6. Step 6: Final answer
    x = 187,735.24

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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.