Home / 377,628.36-521,066.16-216,453.75

Finding the Fourth Proportional to 377,628.36, 521,066.16 and 216,453.75

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Solution

The fourth proportional to 377,628.36, 521,066.16 and 216,453.75 is: 298,671.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,628.36 : 521,066.16 = 216,453.75 : x
  2. Step 2: Convert to fraction form
    377,628.36/521,066.16 = 216,453.75/x
  3. Step 3: Cross multiply
    377,628.36x = 521,066.16 × 216,453.75
  4. Step 4: Simplify right side
    377,628.36x = 112,786,724,330.10
  5. Step 5: Solve for x
    x = 112,786,724,330.10/377,628.36
  6. Step 6: Final answer
    x = 298,671.22

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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.