Home / 238,640.58-329,281.16-135,275.12

Finding the Fourth Proportional to 238,640.58, 329,281.16 and 135,275.12

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Solution

The fourth proportional to 238,640.58, 329,281.16 and 135,275.12 is: 186,655.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,640.58 : 329,281.16 = 135,275.12 : x
  2. Step 2: Convert to fraction form
    238,640.58/329,281.16 = 135,275.12/x
  3. Step 3: Cross multiply
    238,640.58x = 329,281.16 × 135,275.12
  4. Step 4: Simplify right side
    238,640.58x = 44,543,548,432.74
  5. Step 5: Solve for x
    x = 44,543,548,432.74/238,640.58
  6. Step 6: Final answer
    x = 186,655.38

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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.