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Finding the Fourth Proportional to 377,607.62, 521,113.29 and 207,857.54

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Solution

The fourth proportional to 377,607.62, 521,113.29 and 207,857.54 is: 286,851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,607.62 : 521,113.29 = 207,857.54 : x
  2. Step 2: Convert to fraction form
    377,607.62/521,113.29 = 207,857.54/x
  3. Step 3: Cross multiply
    377,607.62x = 521,113.29 × 207,857.54
  4. Step 4: Simplify right side
    377,607.62x = 108,317,326,520.71
  5. Step 5: Solve for x
    x = 108,317,326,520.71/377,607.62
  6. Step 6: Final answer
    x = 286,851.54

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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.