Home / 398,529.33-549,959.46-217,244.79

Finding the Fourth Proportional to 398,529.33, 549,959.46 and 217,244.79

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Solution

The fourth proportional to 398,529.33, 549,959.46 and 217,244.79 is: 299,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,529.33 : 549,959.46 = 217,244.79 : x
  2. Step 2: Convert to fraction form
    398,529.33/549,959.46 = 217,244.79/x
  3. Step 3: Cross multiply
    398,529.33x = 549,959.46 × 217,244.79
  4. Step 4: Simplify right side
    398,529.33x = 119,475,827,396.21
  5. Step 5: Solve for x
    x = 119,475,827,396.21/398,529.33
  6. Step 6: Final answer
    x = 299,791.81

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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.