Home / 320,916.50-442,864.80-175,731.44

Finding the Fourth Proportional to 320,916.50, 442,864.80 and 175,731.44

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Solution

The fourth proportional to 320,916.50, 442,864.80 and 175,731.44 is: 242,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,916.50 : 442,864.80 = 175,731.44 : x
  2. Step 2: Convert to fraction form
    320,916.50/442,864.80 = 175,731.44/x
  3. Step 3: Cross multiply
    320,916.50x = 442,864.80 × 175,731.44
  4. Step 4: Simplify right side
    320,916.50x = 77,825,269,306.10
  5. Step 5: Solve for x
    x = 77,825,269,306.10/320,916.50
  6. Step 6: Final answer
    x = 242,509.41

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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.