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Finding the Fourth Proportional to 238,737.58, 329,347.41 and 143,078.20

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Solution

The fourth proportional to 238,737.58, 329,347.41 and 143,078.20 is: 197,381.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,737.58 : 329,347.41 = 143,078.20 : x
  2. Step 2: Convert to fraction form
    238,737.58/329,347.41 = 143,078.20/x
  3. Step 3: Cross multiply
    238,737.58x = 329,347.41 × 143,078.20
  4. Step 4: Simplify right side
    238,737.58x = 47,122,434,597.46
  5. Step 5: Solve for x
    x = 47,122,434,597.46/238,737.58
  6. Step 6: Final answer
    x = 197,381.72

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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.