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Finding the Fourth Proportional to 243,993.13, 336,710.45 and 136,563.15

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Solution

The fourth proportional to 243,993.13, 336,710.45 and 136,563.15 is: 188,457.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,993.13 : 336,710.45 = 136,563.15 : x
  2. Step 2: Convert to fraction form
    243,993.13/336,710.45 = 136,563.15/x
  3. Step 3: Cross multiply
    243,993.13x = 336,710.45 × 136,563.15
  4. Step 4: Simplify right side
    243,993.13x = 45,982,240,031.33
  5. Step 5: Solve for x
    x = 45,982,240,031.33/243,993.13
  6. Step 6: Final answer
    x = 188,457.11

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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.