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Finding the Fourth Proportional to 307,873.71, 424,872.93 and 171,903.06

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Solution

The fourth proportional to 307,873.71, 424,872.93 and 171,903.06 is: 237,230.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,873.71 : 424,872.93 = 171,903.06 : x
  2. Step 2: Convert to fraction form
    307,873.71/424,872.93 = 171,903.06/x
  3. Step 3: Cross multiply
    307,873.71x = 424,872.93 × 171,903.06
  4. Step 4: Simplify right side
    307,873.71x = 73,036,956,778.17
  5. Step 5: Solve for x
    x = 73,036,956,778.17/307,873.71
  6. Step 6: Final answer
    x = 237,230.25

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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.