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Finding the Fourth Proportional to 159,293.80, 239,070.30 and 154,109.80

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Solution

The fourth proportional to 159,293.80, 239,070.30 and 154,109.80 is: 231,290.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,293.80 : 239,070.30 = 154,109.80 : x
  2. Step 2: Convert to fraction form
    159,293.80/239,070.30 = 154,109.80/x
  3. Step 3: Cross multiply
    159,293.80x = 239,070.30 × 154,109.80
  4. Step 4: Simplify right side
    159,293.80x = 36,843,076,118.94
  5. Step 5: Solve for x
    x = 36,843,076,118.94/159,293.80
  6. Step 6: Final answer
    x = 231,290.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.