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Finding the Fourth Proportional to 309,395.64, 426,949.74 and 175,251

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Solution

The fourth proportional to 309,395.64, 426,949.74 and 175,251 is: 241,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,395.64 : 426,949.74 = 175,251 : x
  2. Step 2: Convert to fraction form
    309,395.64/426,949.74 = 175,251/x
  3. Step 3: Cross multiply
    309,395.64x = 426,949.74 × 175,251
  4. Step 4: Simplify right side
    309,395.64x = 74,823,368,884.74
  5. Step 5: Solve for x
    x = 74,823,368,884.74/309,395.64
  6. Step 6: Final answer
    x = 241,837.18

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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.