Home / 397,865.14-549,060.90-216,582.28

Finding the Fourth Proportional to 397,865.14, 549,060.90 and 216,582.28

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Solution

The fourth proportional to 397,865.14, 549,060.90 and 216,582.28 is: 298,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,865.14 : 549,060.90 = 216,582.28 : x
  2. Step 2: Convert to fraction form
    397,865.14/549,060.90 = 216,582.28/x
  3. Step 3: Cross multiply
    397,865.14x = 549,060.90 × 216,582.28
  4. Step 4: Simplify right side
    397,865.14x = 118,916,861,580.85
  5. Step 5: Solve for x
    x = 118,916,861,580.85/397,865.14
  6. Step 6: Final answer
    x = 298,887.36

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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.