Home / 312,824.20-431,699.60-169,586.52

Finding the Fourth Proportional to 312,824.20, 431,699.60 and 169,586.52

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Solution

The fourth proportional to 312,824.20, 431,699.60 and 169,586.52 is: 234,030.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,824.20 : 431,699.60 = 169,586.52 : x
  2. Step 2: Convert to fraction form
    312,824.20/431,699.60 = 169,586.52/x
  3. Step 3: Cross multiply
    312,824.20x = 431,699.60 × 169,586.52
  4. Step 4: Simplify right side
    312,824.20x = 73,210,432,849.39
  5. Step 5: Solve for x
    x = 73,210,432,849.39/312,824.20
  6. Step 6: Final answer
    x = 234,030.59

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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.