Home / 238,428.77-329,031.44-130,998.54

Finding the Fourth Proportional to 238,428.77, 329,031.44 and 130,998.54

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Solution

The fourth proportional to 238,428.77, 329,031.44 and 130,998.54 is: 180,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,428.77 : 329,031.44 = 130,998.54 : x
  2. Step 2: Convert to fraction form
    238,428.77/329,031.44 = 130,998.54/x
  3. Step 3: Cross multiply
    238,428.77x = 329,031.44 × 130,998.54
  4. Step 4: Simplify right side
    238,428.77x = 43,102,637,599.10
  5. Step 5: Solve for x
    x = 43,102,637,599.10/238,428.77
  6. Step 6: Final answer
    x = 180,777.84

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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.