Home / 243,870.28-336,554.04-136,433.86

Finding the Fourth Proportional to 243,870.28, 336,554.04 and 136,433.86

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Solution

The fourth proportional to 243,870.28, 336,554.04 and 136,433.86 is: 188,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,870.28 : 336,554.04 = 136,433.86 : x
  2. Step 2: Convert to fraction form
    243,870.28/336,554.04 = 136,433.86/x
  3. Step 3: Cross multiply
    243,870.28x = 336,554.04 × 136,433.86
  4. Step 4: Simplify right side
    243,870.28x = 45,917,366,775.79
  5. Step 5: Solve for x
    x = 45,917,366,775.79/243,870.28
  6. Step 6: Final answer
    x = 188,286.03

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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.