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Finding the Fourth Proportional to 338,906.31, 508,185.72 and 179,068.20

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Solution

The fourth proportional to 338,906.31, 508,185.72 and 179,068.20 is: 268,510.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,906.31 : 508,185.72 = 179,068.20 : x
  2. Step 2: Convert to fraction form
    338,906.31/508,185.72 = 179,068.20/x
  3. Step 3: Cross multiply
    338,906.31x = 508,185.72 × 179,068.20
  4. Step 4: Simplify right side
    338,906.31x = 90,999,902,146.10
  5. Step 5: Solve for x
    x = 90,999,902,146.10/338,906.31
  6. Step 6: Final answer
    x = 268,510.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.