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Finding the Fourth Proportional to 238,366.88, 328,808.90 and 142,818.24

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Solution

The fourth proportional to 238,366.88, 328,808.90 and 142,818.24 is: 197,006.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,366.88 : 328,808.90 = 142,818.24 : x
  2. Step 2: Convert to fraction form
    238,366.88/328,808.90 = 142,818.24/x
  3. Step 3: Cross multiply
    238,366.88x = 328,808.90 × 142,818.24
  4. Step 4: Simplify right side
    238,366.88x = 46,959,907,680.24
  5. Step 5: Solve for x
    x = 46,959,907,680.24/238,366.88
  6. Step 6: Final answer
    x = 197,006.85

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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.