Home / 305,272.58-421,302.04-169,350.32

Finding the Fourth Proportional to 305,272.58, 421,302.04 and 169,350.32

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Solution

The fourth proportional to 305,272.58, 421,302.04 and 169,350.32 is: 233,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,272.58 : 421,302.04 = 169,350.32 : x
  2. Step 2: Convert to fraction form
    305,272.58/421,302.04 = 169,350.32/x
  3. Step 3: Cross multiply
    305,272.58x = 421,302.04 × 169,350.32
  4. Step 4: Simplify right side
    305,272.58x = 71,347,635,920.53
  5. Step 5: Solve for x
    x = 71,347,635,920.53/305,272.58
  6. Step 6: Final answer
    x = 233,717.80

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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.