Home / 398,835.42-550,394.62-217,551.24

Finding the Fourth Proportional to 398,835.42, 550,394.62 and 217,551.24

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Solution

The fourth proportional to 398,835.42, 550,394.62 and 217,551.24 is: 300,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,835.42 : 550,394.62 = 217,551.24 : x
  2. Step 2: Convert to fraction form
    398,835.42/550,394.62 = 217,551.24/x
  3. Step 3: Cross multiply
    398,835.42x = 550,394.62 × 217,551.24
  4. Step 4: Simplify right side
    398,835.42x = 119,739,032,070.33
  5. Step 5: Solve for x
    x = 119,739,032,070.33/398,835.42
  6. Step 6: Final answer
    x = 300,221.66

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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.