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Finding the Fourth Proportional to 305,572.59, 421,683.82 and 169,598.56

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Solution

The fourth proportional to 305,572.59, 421,683.82 and 169,598.56 is: 234,042.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,572.59 : 421,683.82 = 169,598.56 : x
  2. Step 2: Convert to fraction form
    305,572.59/421,683.82 = 169,598.56/x
  3. Step 3: Cross multiply
    305,572.59x = 421,683.82 × 169,598.56
  4. Step 4: Simplify right side
    305,572.59x = 71,516,968,647.30
  5. Step 5: Solve for x
    x = 71,516,968,647.30/305,572.59
  6. Step 6: Final answer
    x = 234,042.49

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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.