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Finding the Fourth Proportional to 238,328.20, 328,894.86 and 130,899.52

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Solution

The fourth proportional to 238,328.20, 328,894.86 and 130,899.52 is: 180,642.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,328.20 : 328,894.86 = 130,899.52 : x
  2. Step 2: Convert to fraction form
    238,328.20/328,894.86 = 130,899.52/x
  3. Step 3: Cross multiply
    238,328.20x = 328,894.86 × 130,899.52
  4. Step 4: Simplify right side
    238,328.20x = 43,052,179,304.47
  5. Step 5: Solve for x
    x = 43,052,179,304.47/238,328.20
  6. Step 6: Final answer
    x = 180,642.41

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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.