Home / 397,917.36-549,127.35-216,631.44

Finding the Fourth Proportional to 397,917.36, 549,127.35 and 216,631.44

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Solution

The fourth proportional to 397,917.36, 549,127.35 and 216,631.44 is: 298,952.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,917.36 : 549,127.35 = 216,631.44 : x
  2. Step 2: Convert to fraction form
    397,917.36/549,127.35 = 216,631.44/x
  3. Step 3: Cross multiply
    397,917.36x = 549,127.35 × 216,631.44
  4. Step 4: Simplify right side
    397,917.36x = 118,958,248,573.88
  5. Step 5: Solve for x
    x = 118,958,248,573.88/397,917.36
  6. Step 6: Final answer
    x = 298,952.15

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1.5x scale

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.