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Finding the Fourth Proportional to 377,888.92, 521,462.79 and 208,123.05

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Solution

The fourth proportional to 377,888.92, 521,462.79 and 208,123.05 is: 287,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,888.92 : 521,462.79 = 208,123.05 : x
  2. Step 2: Convert to fraction form
    377,888.92/521,462.79 = 208,123.05/x
  3. Step 3: Cross multiply
    377,888.92x = 521,462.79 × 208,123.05
  4. Step 4: Simplify right side
    377,888.92x = 108,528,422,668.38
  5. Step 5: Solve for x
    x = 108,528,422,668.38/377,888.92
  6. Step 6: Final answer
    x = 287,196.63

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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.