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Finding the Fourth Proportional to 243,489.87, 336,015.28 and 136,060.01

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Solution

The fourth proportional to 243,489.87, 336,015.28 and 136,060.01 is: 187,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,489.87 : 336,015.28 = 136,060.01 : x
  2. Step 2: Convert to fraction form
    243,489.87/336,015.28 = 136,060.01/x
  3. Step 3: Cross multiply
    243,489.87x = 336,015.28 × 136,060.01
  4. Step 4: Simplify right side
    243,489.87x = 45,718,242,356.95
  5. Step 5: Solve for x
    x = 45,718,242,356.95/243,489.87
  6. Step 6: Final answer
    x = 187,762.40

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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.