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Finding the Fourth Proportional to 305,173.38, 421,182.84 and 169,237.56

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Solution

The fourth proportional to 305,173.38, 421,182.84 and 169,237.56 is: 233,572.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,173.38 : 421,182.84 = 169,237.56 : x
  2. Step 2: Convert to fraction form
    305,173.38/421,182.84 = 169,237.56/x
  3. Step 3: Cross multiply
    305,173.38x = 421,182.84 × 169,237.56
  4. Step 4: Simplify right side
    305,173.38x = 71,279,956,155.47
  5. Step 5: Solve for x
    x = 71,279,956,155.47/305,173.38
  6. Step 6: Final answer
    x = 233,572.00

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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.