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Finding the Fourth Proportional to 305,465.57, 421,522.22 and 169,490.89

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Solution

The fourth proportional to 305,465.57, 421,522.22 and 169,490.89 is: 233,886.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,465.57 : 421,522.22 = 169,490.89 : x
  2. Step 2: Convert to fraction form
    305,465.57/421,522.22 = 169,490.89/x
  3. Step 3: Cross multiply
    305,465.57x = 421,522.22 × 169,490.89
  4. Step 4: Simplify right side
    305,465.57x = 71,444,177,173.21
  5. Step 5: Solve for x
    x = 71,444,177,173.21/305,465.57
  6. Step 6: Final answer
    x = 233,886.19

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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.