Home / 238,331.05-328,899.55-130,903.58

Finding the Fourth Proportional to 238,331.05, 328,899.55 and 130,903.58

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Solution

The fourth proportional to 238,331.05, 328,899.55 and 130,903.58 is: 180,648.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,331.05 : 328,899.55 = 130,903.58 : x
  2. Step 2: Convert to fraction form
    238,331.05/328,899.55 = 130,903.58/x
  3. Step 3: Cross multiply
    238,331.05x = 328,899.55 × 130,903.58
  4. Step 4: Simplify right side
    238,331.05x = 43,054,128,555.39
  5. Step 5: Solve for x
    x = 43,054,128,555.39/238,331.05
  6. Step 6: Final answer
    x = 180,648.43

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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.