Home / 315,984.20-436,063.38-188,670.92

Finding the Fourth Proportional to 315,984.20, 436,063.38 and 188,670.92

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Solution

The fourth proportional to 315,984.20, 436,063.38 and 188,670.92 is: 260,368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,984.20 : 436,063.38 = 188,670.92 : x
  2. Step 2: Convert to fraction form
    315,984.20/436,063.38 = 188,670.92/x
  3. Step 3: Cross multiply
    315,984.20x = 436,063.38 × 188,670.92
  4. Step 4: Simplify right side
    315,984.20x = 82,272,479,082.91
  5. Step 5: Solve for x
    x = 82,272,479,082.91/315,984.20
  6. Step 6: Final answer
    x = 260,368.96

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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.