Home / 305,546.27-421,647.51-169,572.32

Finding the Fourth Proportional to 305,546.27, 421,647.51 and 169,572.32

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Solution

The fourth proportional to 305,546.27, 421,647.51 and 169,572.32 is: 234,006.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,546.27 : 421,647.51 = 169,572.32 : x
  2. Step 2: Convert to fraction form
    305,546.27/421,647.51 = 169,572.32/x
  3. Step 3: Cross multiply
    305,546.27x = 421,647.51 × 169,572.32
  4. Step 4: Simplify right side
    305,546.27x = 71,499,746,492.92
  5. Step 5: Solve for x
    x = 71,499,746,492.92/305,546.27
  6. Step 6: Final answer
    x = 234,006.28

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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.