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Finding the Fourth Proportional to 310,371.92, 464,639.32 and 191,661.56

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Solution

The fourth proportional to 310,371.92, 464,639.32 and 191,661.56 is: 286,925.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,371.92 : 464,639.32 = 191,661.56 : x
  2. Step 2: Convert to fraction form
    310,371.92/464,639.32 = 191,661.56/x
  3. Step 3: Cross multiply
    310,371.92x = 464,639.32 × 191,661.56
  4. Step 4: Simplify right side
    310,371.92x = 89,053,496,908.54
  5. Step 5: Solve for x
    x = 89,053,496,908.54/310,371.92
  6. Step 6: Final answer
    x = 286,925.11

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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.