Home / 238,108.71-328,589.75-130,679.02

Finding the Fourth Proportional to 238,108.71, 328,589.75 and 130,679.02

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Solution

The fourth proportional to 238,108.71, 328,589.75 and 130,679.02 is: 180,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,108.71 : 328,589.75 = 130,679.02 : x
  2. Step 2: Convert to fraction form
    238,108.71/328,589.75 = 130,679.02/x
  3. Step 3: Cross multiply
    238,108.71x = 328,589.75 × 130,679.02
  4. Step 4: Simplify right side
    238,108.71x = 42,939,786,017.27
  5. Step 5: Solve for x
    x = 42,939,786,017.27/238,108.71
  6. Step 6: Final answer
    x = 180,336.90

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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.