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Finding the Fourth Proportional to 377,208.69, 520,537.60 and 207,442.81

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Solution

The fourth proportional to 377,208.69, 520,537.60 and 207,442.81 is: 286,265.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,208.69 : 520,537.60 = 207,442.81 : x
  2. Step 2: Convert to fraction form
    377,208.69/520,537.60 = 207,442.81/x
  3. Step 3: Cross multiply
    377,208.69x = 520,537.60 × 207,442.81
  4. Step 4: Simplify right side
    377,208.69x = 107,981,783,364.63
  5. Step 5: Solve for x
    x = 107,981,783,364.63/377,208.69
  6. Step 6: Final answer
    x = 286,265.37

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1.5x scale

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.