Home / 377,811.40-521,383.64-208,061.32

Finding the Fourth Proportional to 377,811.40, 521,383.64 and 208,061.32

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Solution

The fourth proportional to 377,811.40, 521,383.64 and 208,061.32 is: 287,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,811.40 : 521,383.64 = 208,061.32 : x
  2. Step 2: Convert to fraction form
    377,811.40/521,383.64 = 208,061.32/x
  3. Step 3: Cross multiply
    377,811.40x = 521,383.64 × 208,061.32
  4. Step 4: Simplify right side
    377,811.40x = 108,479,768,364.81
  5. Step 5: Solve for x
    x = 108,479,768,364.81/377,811.40
  6. Step 6: Final answer
    x = 287,126.77

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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.