Home / 305,587.12-421,702.32-169,614.04

Finding the Fourth Proportional to 305,587.12, 421,702.32 and 169,614.04

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Solution

The fourth proportional to 305,587.12, 421,702.32 and 169,614.04 is: 234,062.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,587.12 : 421,702.32 = 169,614.04 : x
  2. Step 2: Convert to fraction form
    305,587.12/421,702.32 = 169,614.04/x
  3. Step 3: Cross multiply
    305,587.12x = 421,702.32 × 169,614.04
  4. Step 4: Simplify right side
    305,587.12x = 71,526,634,172.57
  5. Step 5: Solve for x
    x = 71,526,634,172.57/305,587.12
  6. Step 6: Final answer
    x = 234,062.99

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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.