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Finding the Fourth Proportional to 243,510.45, 336,043.44 and 136,080.45

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Solution

The fourth proportional to 243,510.45, 336,043.44 and 136,080.45 is: 187,790.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,510.45 : 336,043.44 = 136,080.45 : x
  2. Step 2: Convert to fraction form
    243,510.45/336,043.44 = 136,080.45/x
  3. Step 3: Cross multiply
    243,510.45x = 336,043.44 × 136,080.45
  4. Step 4: Simplify right side
    243,510.45x = 45,728,941,854.35
  5. Step 5: Solve for x
    x = 45,728,941,854.35/243,510.45
  6. Step 6: Final answer
    x = 187,790.47

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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.