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Finding the Fourth Proportional to 164,818.40, 227,248.80 and 139,278.56

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Solution

The fourth proportional to 164,818.40, 227,248.80 and 139,278.56 is: 192,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,818.40 : 227,248.80 = 139,278.56 : x
  2. Step 2: Convert to fraction form
    164,818.40/227,248.80 = 139,278.56/x
  3. Step 3: Cross multiply
    164,818.40x = 227,248.80 × 139,278.56
  4. Step 4: Simplify right side
    164,818.40x = 31,650,885,625.73
  5. Step 5: Solve for x
    x = 31,650,885,625.73/164,818.40
  6. Step 6: Final answer
    x = 192,034.90

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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.