Home / 238,423.64-329,008.03-130,998.20

Finding the Fourth Proportional to 238,423.64, 329,008.03 and 130,998.20

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Solution

The fourth proportional to 238,423.64, 329,008.03 and 130,998.20 is: 180,768.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,423.64 : 329,008.03 = 130,998.20 : x
  2. Step 2: Convert to fraction form
    238,423.64/329,008.03 = 130,998.20/x
  3. Step 3: Cross multiply
    238,423.64x = 329,008.03 × 130,998.20
  4. Step 4: Simplify right side
    238,423.64x = 43,099,457,743.01
  5. Step 5: Solve for x
    x = 43,099,457,743.01/238,423.64
  6. Step 6: Final answer
    x = 180,768.39

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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.