Home / 243,865.95-336,548.08-136,429.57

Finding the Fourth Proportional to 243,865.95, 336,548.08 and 136,429.57

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Solution

The fourth proportional to 243,865.95, 336,548.08 and 136,429.57 is: 188,280.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,865.95 : 336,548.08 = 136,429.57 : x
  2. Step 2: Convert to fraction form
    243,865.95/336,548.08 = 136,429.57/x
  3. Step 3: Cross multiply
    243,865.95x = 336,548.08 × 136,429.57
  4. Step 4: Simplify right side
    243,865.95x = 45,915,109,838.73
  5. Step 5: Solve for x
    x = 45,915,109,838.73/243,865.95
  6. Step 6: Final answer
    x = 188,280.12

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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.