Home / 238,099.72-328,581.63-130,679.75

Finding the Fourth Proportional to 238,099.72, 328,581.63 and 130,679.75

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Solution

The fourth proportional to 238,099.72, 328,581.63 and 130,679.75 is: 180,340.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,099.72 : 328,581.63 = 130,679.75 : x
  2. Step 2: Convert to fraction form
    238,099.72/328,581.63 = 130,679.75/x
  3. Step 3: Cross multiply
    238,099.72x = 328,581.63 × 130,679.75
  4. Step 4: Simplify right side
    238,099.72x = 42,938,965,262.99
  5. Step 5: Solve for x
    x = 42,938,965,262.99/238,099.72
  6. Step 6: Final answer
    x = 180,340.26

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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.