Home / 306,980.06-423,626.10-171,013.82

Finding the Fourth Proportional to 306,980.06, 423,626.10 and 171,013.82

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Solution

The fourth proportional to 306,980.06, 423,626.10 and 171,013.82 is: 235,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,980.06 : 423,626.10 = 171,013.82 : x
  2. Step 2: Convert to fraction form
    306,980.06/423,626.10 = 171,013.82/x
  3. Step 3: Cross multiply
    306,980.06x = 423,626.10 × 171,013.82
  4. Step 4: Simplify right side
    306,980.06x = 72,445,917,612.70
  5. Step 5: Solve for x
    x = 72,445,917,612.70/306,980.06
  6. Step 6: Final answer
    x = 235,995.52

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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.