Home / 377,861.66-521,442.79-208,111.58

Finding the Fourth Proportional to 377,861.66, 521,442.79 and 208,111.58

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Solution

The fourth proportional to 377,861.66, 521,442.79 and 208,111.58 is: 287,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,861.66 : 521,442.79 = 208,111.58 : x
  2. Step 2: Convert to fraction form
    377,861.66/521,442.79 = 208,111.58/x
  3. Step 3: Cross multiply
    377,861.66x = 521,442.79 × 208,111.58
  4. Step 4: Simplify right side
    377,861.66x = 108,518,282,906.51
  5. Step 5: Solve for x
    x = 108,518,282,906.51/377,861.66
  6. Step 6: Final answer
    x = 287,190.51

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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.