Home / 238,301.28-328,855.59-130,878.09

Finding the Fourth Proportional to 238,301.28, 328,855.59 and 130,878.09

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Solution

The fourth proportional to 238,301.28, 328,855.59 and 130,878.09 is: 180,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,301.28 : 328,855.59 = 130,878.09 : x
  2. Step 2: Convert to fraction form
    238,301.28/328,855.59 = 130,878.09/x
  3. Step 3: Cross multiply
    238,301.28x = 328,855.59 × 130,878.09
  4. Step 4: Simplify right side
    238,301.28x = 43,039,991,505.02
  5. Step 5: Solve for x
    x = 43,039,991,505.02/238,301.28
  6. Step 6: Final answer
    x = 180,611.67

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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.