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Finding the Fourth Proportional to 178,252.80, 245,980.80 and 102,796.80

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Solution

The fourth proportional to 178,252.80, 245,980.80 and 102,796.80 is: 141,854.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,252.80 : 245,980.80 = 102,796.80 : x
  2. Step 2: Convert to fraction form
    178,252.80/245,980.80 = 102,796.80/x
  3. Step 3: Cross multiply
    178,252.80x = 245,980.80 × 102,796.80
  4. Step 4: Simplify right side
    178,252.80x = 25,286,039,101.44
  5. Step 5: Solve for x
    x = 25,286,039,101.44/178,252.80
  6. Step 6: Final answer
    x = 141,854.93

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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.