Home / 377,632.36-521,071.68-216,457.75

Finding the Fourth Proportional to 377,632.36, 521,071.68 and 216,457.75

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Solution

The fourth proportional to 377,632.36, 521,071.68 and 216,457.75 is: 298,676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,632.36 : 521,071.68 = 216,457.75 : x
  2. Step 2: Convert to fraction form
    377,632.36/521,071.68 = 216,457.75/x
  3. Step 3: Cross multiply
    377,632.36x = 521,071.68 × 216,457.75
  4. Step 4: Simplify right side
    377,632.36x = 112,790,003,441.52
  5. Step 5: Solve for x
    x = 112,790,003,441.52/377,632.36
  6. Step 6: Final answer
    x = 298,676.74

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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.