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Finding the Fourth Proportional to 376,920.54, 520,152.03 and 207,165.60

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Solution

The fourth proportional to 376,920.54, 520,152.03 and 207,165.60 is: 285,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,920.54 : 520,152.03 = 207,165.60 : x
  2. Step 2: Convert to fraction form
    376,920.54/520,152.03 = 207,165.60/x
  3. Step 3: Cross multiply
    376,920.54x = 520,152.03 × 207,165.60
  4. Step 4: Simplify right side
    376,920.54x = 107,757,607,386.17
  5. Step 5: Solve for x
    x = 107,757,607,386.17/376,920.54
  6. Step 6: Final answer
    x = 285,889.45

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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.