Home / 238,733.38-358,023.99-78,779.50

Finding the Fourth Proportional to 238,733.38, 358,023.99 and 78,779.50

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Solution

The fourth proportional to 238,733.38, 358,023.99 and 78,779.50 is: 118,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,733.38 : 358,023.99 = 78,779.50 : x
  2. Step 2: Convert to fraction form
    238,733.38/358,023.99 = 78,779.50/x
  3. Step 3: Cross multiply
    238,733.38x = 358,023.99 × 78,779.50
  4. Step 4: Simplify right side
    238,733.38x = 28,204,948,736.19
  5. Step 5: Solve for x
    x = 28,204,948,736.19/238,733.38
  6. Step 6: Final answer
    x = 118,144.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.