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Finding the Fourth Proportional to 238,859.42, 329,639.96 and 136,916.47

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Solution

The fourth proportional to 238,859.42, 329,639.96 and 136,916.47 is: 188,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,859.42 : 329,639.96 = 136,916.47 : x
  2. Step 2: Convert to fraction form
    238,859.42/329,639.96 = 136,916.47/x
  3. Step 3: Cross multiply
    238,859.42x = 329,639.96 × 136,916.47
  4. Step 4: Simplify right side
    238,859.42x = 45,133,138,185.46
  5. Step 5: Solve for x
    x = 45,133,138,185.46/238,859.42
  6. Step 6: Final answer
    x = 188,952.72

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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.