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Finding the Fourth Proportional to 312,028.92, 430,599.42 and 168,788.52

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Solution

The fourth proportional to 312,028.92, 430,599.42 and 168,788.52 is: 232,927.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,028.92 : 430,599.42 = 168,788.52 : x
  2. Step 2: Convert to fraction form
    312,028.92/430,599.42 = 168,788.52/x
  3. Step 3: Cross multiply
    312,028.92x = 430,599.42 × 168,788.52
  4. Step 4: Simplify right side
    312,028.92x = 72,680,238,814.66
  5. Step 5: Solve for x
    x = 72,680,238,814.66/312,028.92
  6. Step 6: Final answer
    x = 232,927.89

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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.