Home / 397,983.75-549,212.09-216,695.68

Finding the Fourth Proportional to 397,983.75, 549,212.09 and 216,695.68

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Solution

The fourth proportional to 397,983.75, 549,212.09 and 216,695.68 is: 299,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,983.75 : 549,212.09 = 216,695.68 : x
  2. Step 2: Convert to fraction form
    397,983.75/549,212.09 = 216,695.68/x
  3. Step 3: Cross multiply
    397,983.75x = 549,212.09 × 216,695.68
  4. Step 4: Simplify right side
    397,983.75x = 119,011,887,306.77
  5. Step 5: Solve for x
    x = 119,011,887,306.77/397,983.75
  6. Step 6: Final answer
    x = 299,037.05

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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.