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Finding the Fourth Proportional to 238,000.96, 328,470.40 and 136,030.72

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Solution

The fourth proportional to 238,000.96, 328,470.40 and 136,030.72 is: 187,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,000.96 : 328,470.40 = 136,030.72 : x
  2. Step 2: Convert to fraction form
    238,000.96/328,470.40 = 136,030.72/x
  3. Step 3: Cross multiply
    238,000.96x = 328,470.40 × 136,030.72
  4. Step 4: Simplify right side
    238,000.96x = 44,682,063,849.44
  5. Step 5: Solve for x
    x = 44,682,063,849.44/238,000.96
  6. Step 6: Final answer
    x = 187,739.01

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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.